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On complex dynamics in a Purkinje and a ventricular cardiac cell model 
Erhardt, André Henrik; Solem, Susanne (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)
Cardiac muscle cells can exhibit complex patterns including irregular behaviour such as chaos or (chaotic) early afterdepolarisations (EADs), which can lead to sudden cardiac death. Suitable mathematical models and their ...
Electrically-active defects in reduced and hydrogenated rutile TiO2 
Bonkerud, Julie; Zimmermann, Christian; Weiser, Philip Michael; Herklotz, Frank; Seiffert, Christoph; Verhoeven, Espen Førdestrøm; Vines, Lasse; Monakhov, Eduard (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)
Systematic research on the effect of both positive and negative mismatch dopants in double-doped YBCO superconducting films 
Xu, Yan; Suo, Hongli; Qureishy, Thomas; Grivel, Jean-Claude; Mikheenko, Pavlo; Liu, Min; Ma, Lin; Zhang, Xiaolong; Zhou, Yuqi; Liu, Jianhua; Wang, Lei; Zhang, Zili; Wang, Qiuliang (Journal article / Tidsskriftartikkel / SubmittedVersion, 2021)
We report a novel doping strategy for YBa2Cu3O7-x (YBCO) superconducting films by using a positive mismatch, Ba2YNbO6 (BYNO), and a negative mismatch, LaAlO3 (LAO), simultaneously. Double doping can significantly reduce ...
Stability of weak solutions to parabolic problems with nonstandard growth and cross–diffusion 
Erhardt, André Henrik (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)
We study the stability of a unique weak solution to certain parabolic systems with nonstandard growth condition, which are additionally dependent on a cross-diffusion term. More precisely, we show that two unique weak ...
Polygenic overlap and shared genetic loci between loneliness, severe mental disorders, and cardiovascular disease risk factors suggest shared molecular mechanisms 
Rødevand, Linn; Bahrami, Shahram; Frei, Oleksandr; Lin, Aihua; Gani, Osman; Shadrin, Alexey A.; Smeland, Olav Bjerkehagen; O'Connell, Kevin; Elvsåshagen, Torbjørn; Winterton, Adriano; Quintana, Daniel; Hindley, Guy Frederick Lanyon; Werner, Maren Caroline Frogner; Djurovic, Srdjan; Dale, Anders Martin; Lagerberg, Trine Vik; Steen, Nils Eiel; Andreassen, Ole Andreas (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)
Abstract Clinical and epidemiological evidence suggest that loneliness is associated with severe mental disorders (SMDs) and increases the risk of cardiovascular disease (CVD). However, the mechanisms underlying the ...
Perineuronal nets stabilize the grid cell network 
Christensen, Ane Charlotte; Lensjø, Kristian Kinden; Lepperød, Mikkel Elle; Dragly, Svenn-Arne; Sutterud, Hallvard; Blackstad, Jan Sigurd; Fyhn, Marianne; Hafting, Torkel (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)
Grid cells are part of a widespread network which supports navigation and spatial memory. Stable grid patterns appear late in development, in concert with extracellular matrix aggregates termed perineuronal nets (PNNs) ...
Imaging defect complexes in scanning transmission electron microscopy: Impact of depth, structural relaxation, and temperature investigated by simulations 
Aarholt, Thomas; Frodason, Ymir Kalmann; Prytz, Øystein (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
Donors and polaronic absorption in rutile TiO2 single crystals 
Weiser, Philip Michael; Zimmermann, Christian; Bonkerud, Julie; Vines, Lasse; Monakhov, Eduard (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
We have used a combination of optical absorption and electrical conductivity measurements to study the effect of the main donor on small polarons in rutile TiO2 single crystals rendered n-type conductive by hydrogenation ...
Water browning controls adaptation and associated trade-offs in phytoplankton stressed by chemical pollution 
Rizzuto, Simone; Thrane, Jan-Erik; Baho, Didier Ludovic; Jones, Kevin C.; Zhang, Hao; Hessen, Dag Olav; Nizzetto, Luca; Leu, Eva Susanne (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2020)
The acquisition of tolerance to an environmental stressor can result in organisms displaying slower growth after stress release. While well-grounded in the theory, empirical evidence of the trade-off between stress tolerance ...
Real time 3D observations of Portland Cement Carbonation at CO2 storage conditions 
Chavez Panduro, Elvia Anabela; Cordonnier, Benoit; Gawel, Kamila; Børve, Ingrid; Iyer, Jaisree; Carroll, Susan; Michels Brito Miranda, Leander Edward; Rogowska, Melania; McBeck, Jessica Ann; Sørensen, Henning Osholm; Walsh, Stuart D.C.; Renard, Francois; Gibaud, Alain; Torsæter, Malin; Breiby, Dag Werner (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
Depleted oil reservoirs are considered a viable solution to the global challenge of CO2 storage. A key concern is whether the wells can be suitably sealed with cement to hinder the escape of CO2. Under reservoir conditions, ...
Enhancing giant magnetocaloric effect near room temperature by inducing magnetostructural coupling in Cu-doped MnCoGe 
Pal, Santosh Kumar; Frommen, Christoph; Kumar, Susmit; Hauback, Bjørn; Fjellvåg, Helmer; Helgesen, Geir (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
High performance magnetocaloric materials are crucial to realize the energy efficient and environment friendly magnetic cooling/refrigeration technology. We have designed Mn1-xCuxCoGe compounds possessing a giant magnetocaloric ...
Evolutionary selection of biofilm-mediated extended phenotypes in Yersinia pestis in response to a fluctuating environment 
Cui, Yujun; Schmid, Boris Valentijn; Cao, Hanli; Dai, Xiang; Du, Zhongmin; Easterday, William Ryan; Fang, Haihong; Guo, Chenying; Huang, Shanqian; Liu, Wanbing; Qi, Zhizhen; Song, Yajun; Tian, Huaiyu; Wang, Min; Wu, Yarong; Xu, Bing; Yang, Chao; Yang, Jing; Yang, Xianwei; Zhang, Qingwen; Jakobsen, Kjetill Sigurd; Zhang, Yujiang; Stenseth, Nils Christian; Yang, Ruifu (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
Yersinia pestis is transmitted from fleas to rodents when the bacterium develops an extensive biofilm in the foregut of a flea, starving it into a feeding frenzy, or, alternatively, during a brief period directly after ...
Formation and control of the E2* center in implanted b-Ga2O3 by reverse-bias and zero-bias annealing 
Zimmermann, Christian; Verhoeven, Espen Førdestrøm; Frodason, Ymir Kalmann; Weiser, Philip Michael; Varley, Joel B; Vines, Lasse (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
Deep-level transient spectroscopy measurements are conducted onβ-Ga2O3thin-filmsimplanted with helium and hydrogen (H) to study the formation of the defect levelE∗2(EA=0.71 eV) during heat treatments under an applied ...
Influence of Carbon Cap on Self-Diffusion in Silicon Carbide 
Bathen, Marianne Etzelmüller; Linnarsson, Margareta; Ghezellou, Mizagh; Ul Hassan, Jawad; Vines, Lasse (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
Self-diffusion of carbon (12C and 13C) and silicon (28Si and 30Si) in 4H silicon carbide has been investigated by utilizing a structure containing an isotope purified 4H-28Si12C epitaxial layer grown on an n-type (0001) ...
The Genome of the Great Gerbil Reveals Species-Specific Duplication of an MHCII Gene 
Nilsson, Pernille; Solbakken, Monica Hongrø; Schmid, Boris Valentijn; Orr, Russell; Lv, Ruichen; Cui, Yujun; Song, Yajun; Zhang, Yujiang; Baalsrud, Helle Tessand; Tørresen, Ole K.; Stenseth, Nils Christian; Yang, Ruifu; Jakobsen, Kjetill Sigurd; Easterday, William Ryan; Jentoft, Sissel (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
Abstract The great gerbil (Rhombomys opimus) is a social rodent living in permanent, complex burrow systems distributed throughout Central Asia, where it serves as the main host of several important vector-borne ...
Spectroscopy on nanoparticles without light 
Fiedler, Johannes; Persson, Clas; Buhmann, Stefan Yoshi (Journal article / Tidsskriftartikkel / SubmittedVersion, 2020)
One of the most-important tools in modern science is the analysis of electromagnetic properties by spectroscopy. The various types of spectroscopy can be classified by the underlying type of interactions between energy and ...
Trapping of multiple H atoms at the Ga(1) vacancy in b-Ga2O3 
Fowler, W. Beall; Stavola, Michael; Qin, Ying; Weiser, Philip Michael (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
Recent suggestions that hydrogen incorporation at the Ga(1) vacancy in β-Ga2O3 may have an impact on its electronic properties have led us to extend our earlier work on these defects. While our previous work provides strong ...
Scaling Behavior of Quasi-One-Dimensional Vortex Avalanches in Superconducting Films 
Qviller, Atle Jorstad; Qureishy, Thomas; Xu, Y; Suo, H; Mozhaev, PB; Hansen, J.B.; Vestgården, Jørn Inge; Johansen, Tom Henning; Mikheenko, Pavlo (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
Scaling behaviour of dynamically driven vortex avalanches in superconducting YBa2Cu3O7−δ films deposited on tilted crystalline substrates has been observed using quantitative magneto-optical imaging. Two films with different ...
Existence of weak solutions to a certain homogeneous parabolic Neumann problem involving variable exponents and cross-diffusion 
Arumugam, Gurusamy; Erhardt, André Henrik (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
This paper deals with a homogeneous Neumann problem of a nonlinear diffusion system involving variable exponents dependent on spatial and time variables and cross-diffusion terms. We prove the existence of weak solutions ...
Absorbing random walks interpolating between centrality measures on complex networks 
Gurfinkel, Alexander Jacob; Rikvold, Per Arne (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
Centrality, which quantifies the importance of individual nodes, is among the most essential concepts in modern network theory. As there are many ways in which a node can be important, many different centrality measures ...
Comparing the Nature of Active Sites in Cu-loaded SAPO-34 and SSZ-13 for the Direct Conversion of Methane to Methanol 
Kvande, Karoline; Pappas, Dimitrios; Dyballa, Michael Martin; Buono, Carlo; Signorile, Matteo; Borfecchia, Elisa; Lomachenko, Kirill A.; Arstad, Bjørnar; Bordiga, Silvia; Berlier, Gloria; Olsbye, Unni; Beato, Pablo; Svelle, Stian (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
On our route towards a more sustainable future, the use of stranded and underutilized natural gas to produce chemicals would be a great aid in mitigating climate change, due to the reduced CO2 emissions in comparison to ...
Influence of hydrogen implantation on emission from the silicon vacancy in 4H-SiC 
Bathen, Marianne Etzelmüller; Galeckas, Augustinas; Coutinho, José; Vines, Lasse (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2020)
The silicon vacancy (VSi) in 4H-SiC is a room temperature single-photon emitter with a controllable high-spin ground state and is a promising candidate for future quantum technologies. However, controlled defect formation ...
Enhancing chalcopyrite leaching by tetrachloroethylene-assisted removal of sulphur passivation and the mechanism of jarosite formation 
Renard, Francois (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2020)
Chalcopyrite (CuFeS2) is the primary ore mineral for copper, but leaching of this mineral under atmospheric conditions is slow due to the formation of surface passivating phases such as elemental sulphur and jarosite. Here, ...
DNA copy number motifs are strong and independent predictors of survival in breast cancer 
Pladsen, Arne Valebjørg; Nilsen, Gro; Rueda, Oscar M.; Aure, Miriam Ragle; Borgan, Ørnulf; Liestøl, Knut; Vitelli, Valeria; Frigessi Di Rattalma, Arnoldo; Langerød, Anita; Mathelier, Anthony; Engebråten, Olav; Kristensen, Vessela N.; Wedge, David C.; Van Loo, Peter; Caldas, Carlos; Børresen-Dale, Anne-Lise; Russnes, Hege Elisabeth Giercksky; Lingjærde, Ole Christian (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
Somatic copy number alterations are a frequent sign of genome instability in cancer. A precise characterization of the genome architecture would reveal underlying instability mechanisms and provide an instrument for outcome ...
High power iron phosphate cathodes by atomic layer deposition 
Brennhagen, Anders; Kvamme, Kristian Breivik; Sverdlilje, Katja S. S.; Nilsen, Ola (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
Amorphous thin films of FePO4 and Fe4(P2O7)3 show excellent power capabilities and good stability as cathode materials in Li-ion batteries. Within our tested range of materials, 10 nm FePO4 shows the best results and can ...
Molecularly matched therapy in the context of sensitivity, resistance, and safety; patient outcomes in end-stage cancer?the MetAction study 
Ree, Anne Hansen; Nygaard, Vigdis; Pedersen, Kjetil Boye; Heinrich, Daniel; Dueland, Svein; Bergheim, Inger Riise; Johansen, Christin; Beiske, Klaus; Negård, Anne; Lund-Iversen, Marius; Nygaard, Vegard; Hovig, Eivind; Nakken, Sigve; Nasser, Salah; Julsrud, Lars; Reisse, Claudius; Ruud, Espen Asak; Kristensen, Vessela N.; Flørenes, Vivi Ann; Geitvik, Gry; Lingjærde, Ole Christian; Børresen-Dale, Anne-Lise; Russnes, Hege Elisabeth Giercksky; Mælandsmo, Gunhild Mari; Flatmark, Kjersti (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
Background: In precision cancer medicine, the challenge is to prioritize DNA driver events, account for resistance markers, and procure sufficient information for treatment that maintains patient safety. The MetAction ...
The role of photomineralization for CO2 emissions in boreal lakes along a gradient of dissolved organic matter 
Allesson, Lina; Koehler, Birgit; Thrane, Jan-Erik; Andersen, Tom; Hessen, Dag O (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
Many boreal lakes are experiencing an increase in concentrations of terrestrially derived dissolved organic matter (DOM)—a process commonly labeled “browning.” Browning affects microbial and photochemical mineralization ...
Organic-rich shale caprock properties of potential CO2 storage sites in the northern North Sea, offshore Norway 
Rahman, Jamil Ur; Fawad, Manzar; Mondol, Nazmul Haque (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
Assessment of the geomechanical properties of organic-rich shale caprocks is critical for a successful CO2 storage into a saline aquifer. In this study, we investigated the geochemical properties of the organic-rich shale ...
Fabrication and characterization of Schottky barrier diodes on rutile TiO2 
Bonkerud, Julie; Zimmermann, Christian; Weiser, Philip Michael; Aarholt, Thomas; Verhoeven, Espen Førdestrøm; Vines, Lasse; Monakhov, Eduard; Herklotz, Frank (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
Formation and control of the E2* center in implanted b-Ga2O3 by reverse-bias and zero-bias annealing 
Zimmermann, Christian; Verhoeven, Espen Førdestrøm; Frodason, Ymir Kalmann; Weiser, Philip Michael; Varley, Joel B; Vines, Lasse (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2020)
Deep-level transient spectroscopy measurements are conducted on β-Ga2O3 thin-films implanted with helium and hydrogen (H) to study the formation of the defect level E2 lowast (EA = 0.71 eV) during heat treatments under an ...
Plasma linoleic acid levels and cardiovascular risk factors: results from the Norwegian ACE 1950 Study 
Chandra, Anupam; Røsjø, Helge; Svensson, My Hanna Sofia; Vigen, Thea; Ihle-Hansen, Håkon; Orstad, Eivind Bjørkan; Rønning, Ole M.; Lyngbakken, Magnus; Nygård, Ståle; Berge, Trygve; Schmidt, Erik Berg; Omland, Torbjørn; Tveit, Arnljot; Eide, Ivar Anders (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2020)
Background A high intake of linoleic acid (LA), the major dietary polyunsaturated fatty acid (PUFA), has previously been associated with reduced cardiovascular (CV) morbidity and mortality in observational studies. ...
Fluid-mediated, brittle-ductile deformation at seismogenic depth – Part 2: Stress history and fluid pressure variations in a shear zone in a nuclear waste repository (Olkiluoto Island, Finland) 
Prando, Francesca; Menegon, Luca; Anderson, Mark W; Marchesini, Barbara; Mattila, Jussi; Viola, Giulio (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
Abstract. The microstructural record of fault rocks active at the brittle–ductile transition zone (BDTZ) may retain information on the rheological parameters driving the switch in deformation mode and on the role of stress ...
Creep Burst Coincident With Faulting in Marble Observed in 4-D Synchrotron X-Ray Imaging Triaxial Compression Experiments 
Renard, Francois; Kandula, Neelima; McBeck, Jessica Ann; Cordonnier, Benoit (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
Faults in carbonate rocks show both seismic and aseismic deformation processes, leading to a wide range of slip velocities. We deformed two centimeter‐scale cores of Carrara marble at 25°C and imaged the nucleation and ...
Feedback between high-pressure genesis of abiotic methane and strain localization in subducted carbonate rocks 
Giuntoli, Francesco; Vitale Brovarone, Alberto; Menegon, Luca (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
Fluid-rock interactions exert key control over rock rheology and strain localization. Redox may significantly affect the reaction pathways and, thereby, the mechanical properties of the rock. This effect may become critical ...
Protracted shearing at mid crustal conditions during large-scale thrusting in the Scandinavian Caledonides 
Giuntoli, Francesco; Menegon, Luca; Warren, Clare; Darling, James R.; Anderson, Mark W. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
During continental collision, large tracts of crust are mobilized along major shear zones. The metamorphic conditions at which these zones operate, the duration of thrusting, and the deformation processes that facilitated ...
Host-rock deformation during the emplacement of the Mourne Mountains granite pluton: Insights from the regional fracture pattern 
Mattsson, Tobias; Burchardt, Steffi; Mair, Karen; Place, Joachim (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
Abstract The Mourne Mountains magmatic center in Northern Ireland consists of five successively intruded granites emplaced in the upper crust. The Mourne granite pluton has classically been viewed as a type ...
Thermoelectric properties of A-site deficient La-doped SrTiO3 at 100–900 °C under reducing conditions 
Singh, Sathya Prakash; Kanas, Nikola; Desissa, Temesgen Debelo; Johnsson, Mats; Einarsrud, Mari-Ann; Norby, Truls Eivind; Wiik, Kjell (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2020)
Lanthanum doped strontium titanate is a potential n-type thermoelectric material at moderate and high temperatures. (La0.12Sr0.88)0.95TiO3 ceramics were prepared by two different routes, conventional sintering at 1500 °C ...
High-Temperature Structural and Electrical Properties of BaLnCo2O6 Positrodes 
Szpunar, Iga; Strandbakke, Ragnar; Sørby, Magnus Helgerud; Wachowski, Sebastian Lech; Balaguer, Maria; Tarach, Mateusz; Serra, José M.; Witkowska, Agnieszka; Dzik, Ewa; Norby, Truls Eivind; Gazda, Maria; Mielewczyk-Gryń, Aleksandra (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
The application of double perovskite cobaltites BaLnCo2O6−δ (Ln = lanthanide element) in electrochemical devices for energy conversion requires control of their properties at operating conditions. This work presents a study ...
Structural setting of a transpressive shear zone: insights from geological mapping, quartz petrofabric and kinematic vorticity analysis in NE Sardinia (Italy) 
Graziani, Riccardo; Montomoli, Chiara; Iaccarino, Salvatore; Menegon, Luca; Nania, Laura; Carosi, Rodolfo (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
Abstract The Posada–Asinara Line is a crustal-scale transpressive shear zone affecting the Variscan basement in northern Sardinia during Late Carboniferous time. We investigated a structural transect of the Posada–Asinara ...
Correlation between surface chemistry and morphology of PtCu and Pt nanoparticles during oxidation-reduction cycle 
Kalyva, Maria Evangelou; Sunding, Martin Fleissner; Gunnæs, Anette Eleonora; Diplas, Spyridon; Redekop, Evgeniy (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
Process conditions during catalytic reactions induce significant changes in surface chemistry and structure of bi- (mono) metallic nanoparticles leading to their deactivation, and this can ultimately affect the reactions ...
Imaging strain localisation in porous andesite using digital volume correlation 
Heap, Michael; Baud, Patrick; McBeck, Jessica Ann; Renard, Francois; Carbillet, Lucille; Hall, Stephan A. (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2020)
Strain localisation structures, such as shear fractures and compaction bands, are of importance due to their influence on permeability and therefore outgassing, a factor thought to influence eruptive style. In this study, ...
Direct imaging of coupled dissolution-precipitation and growth processes on calcite exposed to chromium-rich fluids 
Guren, Marthe Grønlie; Putnis, Christine V; Montes-Hernandez, German; King, Helen E.; Renard, Francois (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
Recent increases in industrial activity have resulted in elevated chromium (Cr) pollution in the natural environment, from the degradation of concrete and the leakage of water from landfills or mine waste. The release of ...
Exotic Compositional Ordering in Manganese–Nickel–Arsenic (Mn-Ni-As) Intermetallics 
Gonano, Bruno Raymond Gino; Fjellvåg, Øystein; Steciuk, Gwladys; Saha, Dipankar; Pelloquin, Denis; Fjellvåg, Helmer (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
In this work we benefited from recent advances in tools for crystal‐structure analysis that enabled us to describe an exotic nanoscale phenomenon in structural chemistry. The Mn0.60Ni0.40As sample of the Mn1−xNixAs solid ...
Anisotropic and trap-limited diffusion of hydrogen/deuterium in monoclinic gallium oxide single crystals 
Reinertsen, Vilde Mari; Weiser, Philip Michael; Frodason, Ymir Kalmann; Bathen, Marianne Etzelmüller; Vines, Lasse; Johansen, Klaus Magnus H (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2020)
The effect of lattice anisotropy on the diffusion of hydrogen (H)/deuterium (2H) in β-Ga2O3 was investigated using secondary ion mass spectrometry (SIMS) and hybrid-functional calculations. Concentration-depth profiles of ...
A toroidal Zr70 oxysulfate cluster and its diverse packing structures 
Øien-Ødegaard, Sigurd; Bazioti, Kalliopi; Redekop, Evgeniy; Prytz, Øystein; Lillerud, Karl Petter; Olsbye, Unni (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
Herein, we report the discovery of a toroidal inorganic cluster of zirconium(IV) oxysulfate of unprecedented size with the formula Zr70(SO4)58(O/OH)146⋅x(H2O) (Zr70), which displays different packing of ring units and thus ...
Symmetry of three-center, four-electron bonds 
Holta, Ann Christin Reiersølmoen; Battaglia, Stefano; Øien-Ødegaard, Sigurd; Gupta, Arvind Kumar; Fiksdahl, Anne; Lindh, Roland; Erdélyi, Máté (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
Three-center, four-electron bonds provide unusually strong interactions; however, their nature remains ununderstood. Investigations of the strength, symmetry and the covalent versus electrostatic character of three-center ...
Accuracy and efficiency of germline variant calling pipelines for human genome data 
Zhao, Sen; Agafonov, Oleg; Azab, Abdulrahman; Stokowy, Tomasz; Hovig, Eivind (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
Abstract Advances in next-generation sequencing technology have enabled whole genome sequencing (WGS) to be widely used for identification of causal variants in a spectrum of genetic-related disorders, and provided new ...
Spherical Micelles with Nonspherical Cores: Effect of Chain Packing on the Micellar Shape 
König, Nico; Willner, Lutz; Carlström, Göran; Zinn, Thomas; Knudsen, Kenneth Dahl; Rise, Frode; Topgaard, Daniel; Lund, Reidar (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
Self-assembly of amphiphilic polymers into micelles is an archetypical example of a “self-confined” system due to the formation of micellar cores with dimensions of a few nanometers. In this work, we investigate the chain ...
Distinguishing space groups by electron channelling: centrosymmetric full-Heusler or non-centrosymmetric half-Heusler? 
Hansen, Vidar; Kosinskiy, Andrey; Taftø, Johan (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
X-ray emission under electron-channelling conditions is used to distinguish between a non-centrosymmetric half-Heusler and a centrosymmetric full-Heusler crystal. For TiCo 1.5+ xSn the space-group determination based on a ...
Predicting the proximity to macroscopic failure using local strain populations from dynamic in situ X-ray tomography triaxial compression experiments on rocks 
McBeck, Jessica Ann; Aiken, John Mark; Ben-Zion, Yehuda; Renard, Francois (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2020)
Predicting the proximity of large-scale dynamic failure is a critical concern in the engineering and geophysical sciences. Here we use evolving contractive, dilatational, and shear strain deformation preceding failure in ...
Net Auto-Solver: A formal approach for automatic resolution of OpenFlow anomalies 
Aryan, Ramtin; Yazidi, Anis; Engelstad, Paal E.; Bouhoula, Adel (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2020)
Policy anomalies are frequent in nowadays’s computer networks due to their increasing configuration complexity. Resolving policy anomalies usually requires network administrator intervention, which is a time-intensive and ...
First-principles calculations of Stark shifts of electronic transitions for defects in semiconductors: the Si vacancy in 4H-SiC 
Bathen, Marianne Etzelmüller; Vines, Lasse; Coutinho, José (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
Point defects in solids are promising single-photon sources with application in quantum sensing, computing and communication. Herein, we describe a theoretical framework for studying electric field effects on defect-related ...
Numerical modeling of the dynamics of the Mer de Glace glacier, French Alps: comparison with past observations and forecasting of near-future evolution 
Peyaud, Vincent; Bouchayer, Coline Lili Mathy; Gagliardini, Olivier; Vincent, Christian; Gillet-Chaulet, Fabien; Six, Delphine; Laarman, Olivier (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
Alpine glaciers are shrinking and rapidly loosing mass in a warming climate. Glacier modeling is required to assess the future consequences of these retreats on water resources, the hydropower industry and risk management. ...
Influence of Defects and H2O on the Hydrogenation of CO2 to Methanol over Pt Nanoparticles in UiO-67 Metal-Organic Framework 
Gutterød, Emil Sebastian; Pulumati, S.H.; Kaur, Gurpreet; Lazzarini, Andrea; Solemsli, B. G.; Gunnæs, Anette Eleonora; Ahoba-Sam, Christian; Kalyva, Maria Evangelou; Sannes, Johnny Andreas; Svelle, Stian; Skúlason, Egill; Nova, Ainara; Olsbye, Unni (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
In catalysts for CO2 hydrogenation, the interface between metal nanoparticles (NPs) and the support material is of high importance for the activity and reaction selectivity. In Pt NP-containing UiO Zr-metal–organic frameworks ...
On the conversion of CO2 to value added products over composite PdZn and H-ZSM-5 catalysts: excess Zn over Pd, a compromise or a penalty? 
Ahoba-Sam, Christian; Borfecchia, Elisa; Lazzarini, Andrea; Bugaev, Aram L.; Isah, Abdulrahman Adamu; Taoufik, Mostafa; Bordiga, Silvia; Olsbye, Unni (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
A challenge in converting CO2 into hydrocarbons (HC) via methanol (MeOH) is the gap between the optimal temperature for each step (i.e. ≤250 °C for MeOH and ≥350 °C for HC). The focus of this study is to elucidate the cause ...
Competition between slow slip and damage on and off faults revealed in 4D synchrotron imaging experiments 
Renard, Francois; McBeck, Jessica Ann; Cordonnier, Benoit (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2020)
In the continental crust, faults may accommodate deformation through aseismic creep, slow slip events, or seismic slips that produce dynamic damage, or a combination of these endmembers. A variety of parameters controls ...
Variability in the formation and framework polymorphism of metal-organic frameworks based on yttrium(III) and the bifunctional organic linker 2,5-dihydroxyterephthalic acid 
Dietzel, Pascal D.C.; Blom, Richard; Fjellvåg, Helmer (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
Depending on the solvothermal reaction conditions, we obtained three different metal‐organic frameworks with yttrium(III) as metal component and 2,5‐dihdyroxyterepthalic acid (H4dhtp) as bifunctional organic linker: ...
Temperature-Dependent Photochromic Performance of Yttrium Oxyhydride Thin Films 
Baba, Elbruz Murat; Weiser, Philip Michael; Zayim, Esra; Karazhanov, Smagul (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
Yttrium oxyhydride (YHO) is a rare‐earth‐metal oxyhydride that has attracted considerable attention due to its outstanding photochromic properties. The transparency of YHO thin films across the infrared and visible spectral ...
Existence and uniqueness of weak solutions to parabolic problems with nonstandard growth and cross diffusion 
Arumugam, Gurusamy; Erhardt, André Henrik (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
A genomic and historical synthesis of plague in 18th century Eurasia 
Guellil, Meriam; Kersten, Oliver; Namouchi, Amine; Luciani, Stefania; Marota, Isolina; Arcini, Caroline; Iregren, Elisabeth; Lindemann, Robert; Warfvinge, Gunnar; Bakanidze, Leila; Bitadze, Lia; Rubini, Mauro; Zaio, Paola; Zaio, Monica; Neri, Damiano; Stenseth, Nils Christian; Bramanti, Barbara (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
Plague continued to afflict Europe for more than five centuries after the Black Death. Yet, by the 17th century, the dynamics of plague had changed, leading to its slow decline in Western Europe over the subsequent 200 y, ...
Deformation precursors to catastrophic failure in rocks 
McBeck, Jessica Ann; Aiken, John Mark; Mathiesen, Joachim; Ben-Zion, Yehuda; Renard, Francois (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
Forecasting the timing of catastrophic failure, such as crustal earthquakes, has been a central concern for centuries. Such forecasting requires identifying signals that evolve or accelerate in the precursory phase leading ...
tert-butoxides as precursors for atomic layer deposition of alkali metal containing thin films 
Sønsteby, Henrik Hovde; Bratvold, Jon Einar; Killi, Veronica Anne-Line Kathrine; Choudhury, Devika; Elam, Jeffrey W.; Fjellvåg, Helmer; Nilsen, Ola (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
Alkali metal containing materials have become increasingly attractive in a world hunting for sustainable energy materials and green functional devices. Lithium- and sodium battery technology, lead-free piezo- and ferroelectric ...
Atomic Layer Deposition of GdCoO3 and Gd0.9Ca0.1CoO3 
Duparc, Marion Jeanne Louise; Sønsteby, Henrik Hovde; Nilsen, Ola; Sjåstad, Anja Olafsen; Fjellvåg, Helmer (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
Thin films of the catalytically interesting ternary and quaternary perovskites GdCoO3 and Gd0.9Ca0.1CoO3 are fabricated by atomic layer deposition using metal β-diketonates and ozone as precursors. The resulting thin films ...
Phenotype-specific differences in polygenicity and effect size distribution across functional annotation categories revealed by AI-MiXeR 
Shadrin, Alexey A.; Frei, Oleksandr; Smeland, Olav Bjerkehagen; Bettella, Francesco; O'Connell, Kevin; Gani, Osman; Bahrami, Shahram; Uggen, Tea Kristiane Espeland; Djurovic, Srdjan; Holland, Dominic; Andreassen, Ole; Dale, Anders (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
Abstract Motivation Determining the relative contributions of functional genetic categories is fundamental to understanding the genetic etiology of complex human traits and diseases. Here, ...
RippleNet: a Recurrent Neural Network for Sharp Wave Ripple (SPW-R) Detection 
Hagen, Espen; Chambers, Anna; Pettersen, Klas H.; Einevoll, Gaute; Enger, Rune (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
Abstract Hippocampal sharp wave ripples (SPW-R) have been identified as key bio-markers of important brain functions such as memory consolidation and decision making. Understanding their underlying mechanisms in healthy ...
Consistency and reproducibility in atomic layer deposition 
Sønsteby, Henrik Hovde; Yanguas-Gil, Angel; Elam, Jeffrey W. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
Atomic layer deposition (ALD) is a thin film synthesis technique that can provide exquisite accuracy and precision in film thickness and composition even on complex, large area substrates. Based on self-limiting surface ...
The heterogeneous nucleation of threading dislocations on partial dislocations in III-nitride epilayers 
Smalc-Koziorοwska, Julita; Moneta, J.; Chatzopoulou, P.; Vasileiadis, I.G.; Bazioti, Kalliopi; Prytz, Øystein; Belabbas, I.; Komninou, Ph.; Dimitrakopulos, G.P. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
Abstract III-nitride compound semiconductors are breakthrough materials regarding device applications. However, their heterostructures suffer from very high threading dislocation (TD) densities that impair several aspects ...
Single-step approach to sensitized luminescence through bulk-embedded organics in crystalline fluorides 
Hansen, Per-Anders Stensby; Zikmund, Tomas; Yu, Ting; Kvalvik, Julie Nitsche; Aarholt, Thomas; Prytz, Øystein; Meijerink, Andries; Nilsen, Ola (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
Abstract Luminescent materials enable warm white LEDs, molecular tagging, enhanced optoelectronics and can improve energy harvesting. With the recent development of multi-step processes like down- and upconversion ...
Twinning in Zr-Based Metal-Organic Framework Crystals 
Øien-Ødegaard, Sigurd; Lillerud, Karl Petter (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
Ab initio structure determination of new metal-organic framework (MOF) compounds is generally done by single crystal X-ray diffraction, but this technique can yield incorrect crystal structures if crystal twinning is ...
Nanoscale Forces between Basal Mica Surfaces in Dicarboxylic Acid Solutions: Implications for Clay Aggregation in the Presence of Soluble Organic Acids 
Dziadkowiec, Joanna; Røyne, Anja (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
The stability of organomineral aggregates in soils has a key influence on nutrient cycling, erosion, and soil productivity. Both clay minerals with distinct basal and edge surfaces and organic molecules with reactive ...
Ten quick tips for teaching with participatory live coding 
Nederbragt, Alexander Johan; Harris, Rayna Michelle; Hill, Alison Presmanes; Wilson, Greg (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
Formation of N2 bubbles along grain boundaries in (ZnO)1−x(GaN)x: nanoscale STEM-EELS studies 
Bazioti, Kalliopi; Olsen, Vegard Skiftestad; Kuznetsov, Andrej; Vines, Lasse; Prytz, Øystein (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
Direct evidence of N2 formation after annealing of (ZnO)1−x(GaN)x alloys was revealed. N2 was trapped by VZn+Ga-clusters, forming faceted voids along grain boundaries. This study shows that N–N bonding is a competitive ...
Strain Modulation of Si Vacancy Emission from SiC Micro- and Nanoparticles 
Vasquez, Geraldo Cristian; Bathen, Marianne Etzelmüller; Galeckas, Augustinas; Bazioti, Kalliopi; Johansen, Klaus Magnus H; Maestre, D.; Cremades, A.; Prytz, Øystein; Moe, A.M.; Kuznetsov, Andrej; Vines, Lasse (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
Single-photon emitting point defects in semiconductors have emerged as strong candidates for future quantum technology devices. In the present work, we exploit crystalline particles to investigate relevant defect localizations, ...
Selective etching of nanostructured a-Si:Al and its effect on porosity, Al gradient and surface oxidation 
Kjeldstad, Torunn; Thøgersen, Annett; Stange, Marit Synnøve Sæverud; Jensen, Ingvild Julie Thue; Nilsen, Ola; Galeckas, Augustinas; Monakhov, Eduard (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
Nanoporous amorphous silicon (a-Si) with <5 nm cylindrical pores have been fabricated by phase separation of aluminum (Al) and silicon, forming self-assembled Al nanowires (NWs), followed by subsequent removal of Al by wet ...
Conversion pathways of primary defects by annealing in proton-irradiated n-type 4H-SiC 
Karsthof, Robert Michael; Bathen, Marianne Etzelmüller; Galeckas, Augustinas; Vines, Lasse (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
The development of defect populations after proton irradiation of n-type 4H-SiC and subsequent annealing experiments is studied by means of deep level transient (DLTS) and photoluminescence spectroscopy. A comprehensive ...
Carrier-mediated ferromagnetism in two-dimensional PtS2 
Iordanidou, Konstantina; Houssa, Michel; Persson, Clas (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
Using first principles calculations based on density functional theory, we study the impact of hole doping on the magnetic and electronic properties of two dimensional PtS2. Although 2D PtS2 is intrinsically non-magnetic, ...
Sedimentary Architecture of Storm-Influenced Tidal Flat Deposits of the Upper Mulichinco Formation, Neuquén Basin, Argentina 
Sleveland, Arve; Midtkandal, Ivar; Galland, Olivier; Leanza, Hector Armando (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
This study reports on the Lower Cretaceous upper Mulichinco Formation in the Neuquén Basin, west-central Argentina. The studied succession comprises shallow marine strata, deposited in a mixed wave and tidal flat environment ...
Elucidating the origin of external quantum efficiency losses in cuprous oxide solar cells through defect analysis 
Gan, Jiantuo; Hoye, Robert L.Z; Levskaya, Yulia; Vines, Lasse; Marin, Andrew T.; MacManus-Driscoll, Judith L.; Monakhov, Eduard (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
Heterojunction Cu2O solar cells are an important class of Earth-abundant photovoltaics that can be synthesized by a variety of techniques, including electrochemical deposition (ECD) and thermal oxidation (TO). The latter ...
Dynamic Impurity Redistributions in Kesterite Absorbers 
Grini, Sigbjørn; Aboulfadl, Hisham; Ross, Nils; Persson, Clas; Platzer-Björkman, Charlotte; Thuvander, Mattias; Vines, Lasse (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
Cu2ZnSn(S,Se)4 is a promising nontoxic earth‐abundant solar cell absorber. To optimize the thin films for solar cell device performance, postdeposition treatments at temperatures below the crystallization temperature are ...
Muon Interaction with Negative-U and High-Spin-State Defects: Differentiating Between C and Si Vacancies in 4H-SiC 
Woerle, Judith; Bathen, Marianne Etzelmüller; Prokscha, Thomas; Galeckas, Augustinas; Ayedh, Hussein Mohammed Hussein; Vines, Lasse; Grossner, Ulrike (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
Low-energy muon-spin-rotation spectroscopy (LE-μSR) is employed to study silicon and carbon vacancies in proton-irradiated 4H-SiC. We show that the implanted muon is quickly attracted to the negative Si vacancy (VSi), where ...
Lateral straggling of implanted aluminum in 4H-SiC 
Müting, Johanna; Bobal, Viktor; Sky, Thomas Neset; Vines, Lasse; Grossner, Ulrike (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
The implantation of aluminum into 4H-SiC is studied using secondary ion mass spectrometry. In particular, two-dimensional concentration profiles are obtained, which allow the investigation of lateral straggling and its ...
Hydrogenation of CO2 to Methanol by Pt Nanoparticles Encapsulated in UiO-67: Deciphering the Role of the Metal–Organic Framework 
Gutterød, Emil Sebastian; Lazzarini, Andrea; Fjermestad, Torstein; Kaur, Gurpreet; Manzoli, Maela; Bordiga, Silvia; Svelle, Stian; Lillerud, Karl Petter; Skúlason, Egill; Øien-Ødegaard, Sigurd; Nova, Ainara; Olsbye, Unni (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
Metal–organic frameworks (MOFs) show great prospect as catalysts and catalyst support materials. Yet, studies that address their dynamic, kinetic, and mechanistic role in target reactions are scarce. In this study, an ...
Catalytic studies of cyclometalated gold(III) complexes and their related UiO-67 MOF 
Levchenko, Vladimir; Siah, Huey-San Melanie; Øien-Ødegaard, Sigurd; Kaur, Gurpreet; Fiksdahl, Anne; Tilset, Mats (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
Cyclometalated gold(III) complexes Au(L)(OAcF)2 (L = phenylpyridine dicarboxylic diester (ppyde) or phenylpyridine dicarboxylic acid (ppydc)) have been prepared reacting Au(OAc)3 with corresponding phenyl pyridines (ppyde ...
Tankyrase inhibition sensitizes melanoma to PD-1 immune checkpoint blockade in syngeneic mouse models 
Waaler, Jo; Mygland, Line; Tveita, Anders Aune; Strand, Martin Frank; Solberg, Nina; Olsen, Petter Angell; Aizenshtadt, Aleksandra; Fauskanger, Marte; Lund, Kaja; Mahmuda, Shoshy (Brinch, Shoshy Alam); Lycke, Eric Maximilian; Dybing, Elisabeth; Nygaard, Vegard; Bøe, Sigurd; Heintz, Karen Marie; Hovig, Eivind; Hammarström, Clara Louise; Corthay, Alexandre; Krauss, Stefan (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
The development of immune checkpoint inhibitors represents a major breakthrough in cancer therapy. Nevertheless, a substantial number of patients fail to respond to checkpoint pathway blockade. Evidence for WNT/β-catenin ...
Microstructural Evolution of Amphibole Peridotites in Åheim, Norway, and the Implications for Seismic Anisotropy in the Mantle Wedge 
Jung, Sejin; Jung, Haemyeong; Austrheim, Håkon Olaf (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
The microstructure of amphibole peridotites from Åheim, Norway were analyzed to understand the evolution of the lattice-preferred orientation (LPO) of olivine throughout the Scandian Orogeny and its implication for the ...
Impact of inversion symmetry on a quasi-1D S = 1 system 
Kim, J.K.; Ranjith, K.M.; Burkhardt, U.; Prots, Yu; Baenitz, M.; Valldor, Björn Martin (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
Here, we report the synthesis and magnetic properties of a novel, centrosymmetric, quasi-1D spin chain system La3VWS3O6, with hexagonal crystal structure (P63/m, a  =  9.460 76(3), c  =  5.518 09(2) Å). Pure powders were ...
Primary intrinsic defects and their charge transition levels in beta-Ga2O3 
Zimmermann, Christian; Rønning, Vegard; Frodason, Ymir Kalmann; Bobal, Viktor; Varley, Joel B; Vines, Lasse (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
A steady-state photocapacitance (SSPC) setup directly connected to the beamline of a MeV ion implanter is utilized to study primary intrinsic defects in β–Ga2O3 generated by He implantation at cryogenic temperatures (120 ...
Synthesis, Characterization, and Reactivity of Cyclometalated Gold(III) Dihalide Complexes in Aqua Regia 
Levchenko, Vladimir; Nova, Ainara; Øien-Ødegaard, Sigurd; Balcells, David; Tilset, Mats (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
A range of N,C‐chelated, cyclometalated gold(III) complexes Au(ppyR)X2 have been prepared and characterized by spectroscopic, crystallographic, and computational means. Here, ppyH is 2‐phenylpyridine dicarboxylic acid ...
Ti- and Fe-related charge transition levels in beta-Ga2O3 
Zimmermann, Christian; Frodason, Ymir Kalmann; Barnard, Abraham Willem; Varley, Joel B; Irmscher, Klaus; Galazka, Zbigniew; Karjalainen, Antti; Meyer, Walter Ernst; Auret, F.D.; Vines, Lasse (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
Deep-level transient spectroscopy measurements on β-Ga2O3 crystals reveal the presence of three defect signatures labeled E2a, E2b, and E3 with activation energies at around 0.66 eV, 0.73 eV, and 0.95 eV below the conduction ...
Combining steady-state photo-capacitance spectra with first-principles calculations: the case of Fe and Ti in β-Ga2O3 
Zimmermann, Christian; Frodason, Ymir Kalmann; Rønning, Vegard; Varley, Joel B; Vines, Lasse (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
Stress Field Interactions Between Overlapping Shield Volcanoes: Borehole Breakout Evidence From the Island of Hawai'i, USA 
Pierdominici, Simona; Millet, John M.; Kück, Jochem K. M.; Thomas, Donald; Jerram, Dougal Alexander; Planke, Sverre; Haskins, Eric; Lautze, Nicole; Galland, Olivier (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
Knowledge of the in situ stress state of the Earth's crust plays a key role in understanding geological processes including plate tectonics, earthquakes, slope failure, and igneous emplacement. In this paper, we determine ...
High electron mobility single-crystalline ZnSnN2 on ZnO (0001) substrates 
Gogova, Daniela; Olsen, Vegard Skiftestad; Bazioti, Kalliopi; Lee, In-Hwan; Prytz, Øystein; Vines, Lasse; Kuznetsov, Andrej (Journal article / Tidsskriftartikkel / SubmittedVersion, 2020)
Making a systematic effort, we have developed single-crystalline ZnSnN2 on ZnO (0001) by reactive magnetron co-sputtering. Epitaxial growth was achieved at 350 °C by co-sputtering from metal targets in a nitrogen atmosphere, ...
Intentional and unintentional channeling during implantation of p-dopants in 4h-sic 
Linnarsson, Margareta; Hallen, Anders; Vines, Lasse (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
Channeling phenomena during ion implantation have been studied for 50 keV 11 B, 100 keV 27 Al and 240 keV 71 Ga in 4H-SiC by secondary ion mass spectrometry and medium energy ion backscattering. The same projected range ...
Structural and Geochemical Interactions Between Magma and Sedimentary Host Rock: The Hovedøya Case, Oslo Rift, Norway 
Poppe, Sam; Galland, Olivier; de Winter, N. J.; Goderis, S.; Claeys, P.; Debaille, V.; Boulvais, Philippe; Kervyn, Matthieu (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
Two end‐member conceptual models are used to describe deformation of the Earth's crust induced by magma intrusion. “Mode I” fracturing assumes tensile or opening‐mode, elastic deformation, while “Mode II” fracturing assumes ...
Self-trapped hole and impurity-related broad luminescence in β-Ga2O3 
Frodason, Ymir Kalmann; Johansen, Klaus Magnus H; Vines, Lasse; Varley, J.B. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
This work explores the luminescence properties of self-trapped holes and impurity-related acceptors using one-dimensional configuration coordinate diagrams derived from hybrid functional calculations. The photoluminescence ...
Hydrogen-related defects measured by infrared spectroscopy in multicrystalline silicon wafers throughout an illuminated annealing process 
Weiser, Philip Michael; Monakhov, Eduard; Haug, Halvard; Wiig, Marie Syre; Søndenå, Rune (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
Hydrogen (H) is thought to be strongly involved in the light and elevated temperature-induced degradation observed predominantly in p-type silicon wafers, but the nature of the defect or defects involved in this process ...
Optical signatures of single ion tracks in ZnO 
Vasquez, Geraldo Cristian; Johansen, Klaus Magnus H; Galeckas, Augustinas; Vines, Lasse; Svensson, Bengt Gunnar (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
The optical properties of single ion tracks have been studied in ZnO implanted with Ge by combining depth-resolved hyperspectral cathodoluminescence (CL) and photoluminescence (PL) spectroscopy techniques. The results ...
Anisotropic and plane-selective migration of the carbon vacancy in SiC: Theory and experiment 
Bathen, Marianne Etzelmüller; Coutinho, José; Ayedh, Hussein Mohammed Hussein; Hassan, Jawad U; Farkas, Ildiko; Öberg, Sven; Frodason, Ymir Kalmann; Svensson, Bengt Gunnar; Vines, Lasse (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2019)
We investigate the migration mechanism of the carbon vacancy (VC) in silicon carbide (SiC) using a combination of theoretical and experimental methodologies. The VC, commonly present even in state-of-the-art epitaxial SiC ...
Electrical charge state identification and control for the silicon vacancy in 4H-SiC 
Bathen, Marianne Etzelmüller; Galeckas, Augustinas; Müting, Johanna; Ayedh, Hussein Mohammed Hussein; Grossner, Ulrike; Coutinho, José; Frodason, Ymir Kalmann; Vines, Lasse (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
Reliable single-photon emission is crucial for realizing efficient spin-photon entanglement and scalable quantum information systems. The silicon vacancy (VSi) in 4H-SiC is a promising single-photon emitter exhibiting ...
Association of Maternal Use of Benzodiazepines and Z-Hypnotics During Pregnancy With Motor and Communication Skills and Attention-Deficit/Hyperactivity Disorder Symptoms in Preschoolers 
Lupattelli, Angela; Chambers, Christina D.; Bandoli, Gretchen; Handal, Marte; Skurtveit, Svetlana; Nordeng, Hedvig Marie Egeland (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
Importance The reproductive safety of benzodiazepine/z-hypnotic exposure on child longer-term developmental risks remains unresolved. Objective To quantify the association of motor, communication, and attention-defi ...
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