Hide metadata

dc.date.accessioned2018-01-05T15:39:42Z
dc.date.available2018-01-05T15:39:42Z
dc.date.created2017-12-30T11:23:02Z
dc.date.issued1992
dc.identifier.citationHuang, Q. Karen, Pavel Karen, V.L. Kjekshus, Arne Lynn, J.W. Mighell, A.D. Rosov, N. Santoro, A. . Neutron-powder-diffraction study of the nuclear and magnetic structures of YBa2Fe3O8 at room temperature. Physical Review B. 1992, 45, 9611-9619
dc.identifier.urihttp://hdl.handle.net/10852/59530
dc.description.abstractThe nuclear and magnetic structures of YBa 2 Fe 3 O 8 have been investigated by powder neutron diffraction at room temperature. The nuclear structure of the compound has the symmetry of space group P4/mmm and lattice parameters a=3.9170(1) and c=11.8252(4) Å. The configuration of the atoms in the unit cell is very similar to that of the superconductor YBa 2 Cu 3 O 7 , with the exception that the iron ions corresponding to the Cu-chain ions have octahedral coordination, rather than square planar; the octahedra thus are arranged in layers rather than in chains. This significant difference is a consequence of the fact that all possible oxygen sites in these layers are fully occupied, resulting in an oxygen content of eight rather than seven atoms per formula unit. A second consequence of the full occupancy of the oxygen sites is that the Ba ions have a twelvefold cuboctahedral coordination in the iron compound, rather than tenfold. The magnetic structure is based on a unit cell related to that of the nuclear structure by an axis transformation of matrix (11¯0/110/002). The magnetic origin of the extra intensities and the basic spin configuration were determined by polarized-neutron-diffraction measurements. The iron moments are coupled antiferromagnetically within each FeO 2 layer, as well as along the c axis. The magnetic moments of all the iron ions are the same, with a value of 3.49(2) μ B . This configuration results in the magnetic symmetry Icmm’m. © 1992 American Physical Societyen_US
dc.languageEN
dc.titleNeutron-powder-diffraction study of the nuclear and magnetic structures of YBa2Fe3O8 at room temperatureen_US
dc.typeJournal articleen_US
dc.creator.authorHuang, Q.
dc.creator.authorKaren, Pavel
dc.creator.authorKaren, V.L.
dc.creator.authorKjekshus, Arne
dc.creator.authorLynn, J.W.
dc.creator.authorMighell, A.D.
dc.creator.authorRosov, N.
dc.creator.authorSantoro, A.
cristin.unitcode185,15,12,0
cristin.unitnameKjemisk institutt
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.qualitycode1
dc.identifier.cristin1532976
dc.identifier.bibliographiccitationinfo:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Physical Review B&rft.volume=45&rft.spage=9611&rft.date=1992
dc.identifier.jtitlePhysical Review B
dc.identifier.volume45
dc.identifier.startpage9611
dc.identifier.endpage9619
dc.identifier.doihttp://dx.doi.org/10.1103/PhysRevB.45.9611
dc.identifier.urnURN:NBN:no-62209
dc.type.documentTidsskriftartikkelen_US
dc.type.peerreviewedPeer reviewed
dc.source.issn2469-9950
dc.identifier.fulltextFulltext https://www.duo.uio.no/bitstream/handle/10852/59530/1/1992%2Bybfo.pdf
dc.type.versionPublishedVersion


Files in this item

Appears in the following Collection

Hide metadata