dc.date.accessioned | 2023-08-22T17:27:32Z | |
dc.date.available | 2023-08-22T17:27:32Z | |
dc.date.created | 2023-08-14T13:48:43Z | |
dc.date.issued | 2023 | |
dc.identifier.citation | Silva, Daniel Buendia, Gloria M Rikvold, Per Arne . Multicritical bifurcation and first-order phase transitions in a three-dimensional Blume-Capel antiferromagnet. Physical Review E (PRE). 2023, 108 | |
dc.identifier.uri | http://hdl.handle.net/10852/103663 | |
dc.description.abstract | We present a detailed study by Monte Carlo simulations and finite-size scaling analysis of the phase diagram and ordered bulk phases for the three-dimensional Blume-Capel antiferromagnet in the space of temperature and magnetic and crystal fields (or two chemical potentials in an equivalent lattice-gas model with two particle species and vacancies). The phase diagram consists of surfaces of second- and first-order transitions that enclose a “volume” of ordered phases in the phase space. At relatively high temperatures, these surfaces join smoothly along a line of tricritical points, and at zero magnetic field we obtain good agreement with known values for tricritical exponent ratios [Y. Deng and H.W. J. Blöte, Phys. Rev. E 70, 046111 (2004)]. In limited field regions at lower temperatures (symmetric under reversal of the magnetic field), the tricritical line for this three-dimensional model bifurcates into lines of critical endpoints and critical points, connected by a surface of weak first-order transitions inside the region of ordered phases. This phenomenon is not seen in the two-dimensional version of the same model. We confirm the location of the bifurcation as previously reported [Y.-L. Wang and J. D. Kimel, J. Appl. Phys. 69, 6176 (1991)], and we identify the phases separated by this first-order surface as antiferromagnetically (three-dimensional checker-board) ordered with different vacancy densities. We visualize the phases by real-space snapshots and by structure factors in the three-dimensional space of wave vectors. | |
dc.language | EN | |
dc.publisher | American Physical Society | |
dc.rights | Attribution 4.0 International | |
dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | |
dc.title | Multicritical bifurcation and first-order phase transitions in a three-dimensional Blume-Capel antiferromagnet | |
dc.title.alternative | ENEngelskEnglishMulticritical bifurcation and first-order phase transitions in a three-dimensional Blume-Capel antiferromagnet | |
dc.type | Journal article | |
dc.creator.author | Silva, Daniel | |
dc.creator.author | Buendia, Gloria M | |
dc.creator.author | Rikvold, Per Arne | |
cristin.unitcode | 185,15,4,98 | |
cristin.unitname | Porous Media Laboratory SFF | |
cristin.ispublished | true | |
cristin.fulltext | original | |
cristin.qualitycode | 1 | |
dc.identifier.cristin | 2166775 | |
dc.identifier.bibliographiccitation | info:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Physical Review E (PRE)&rft.volume=108&rft.spage=&rft.date=2023 | |
dc.identifier.jtitle | Physical Review E (PRE) | |
dc.identifier.volume | 108 | |
dc.identifier.issue | 2 | |
dc.identifier.pagecount | 13 | |
dc.identifier.doi | https://doi.org/10.1103/PhysRevE.108.024122 | |
dc.subject.nvi | VDP::Kondenserte fasers fysikk: 436 | |
dc.type.document | Tidsskriftartikkel | |
dc.type.peerreviewed | Peer reviewed | |
dc.source.issn | 2470-0045 | |
dc.type.version | PublishedVersion | |
cristin.articleid | 024122 | |
dc.relation.project | NFR/262644 | |