Stabilization of spin and charge ordering in stoichiometric YbFe2O4

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dc.contributor.authorFujiwara, Ken_AU
dc.contributor.authorKarasudani, Ten_AU
dc.contributor.authorKakurai, Ken_AU
dc.contributor.authorLee, WTen_AU
dc.contributor.authorRule, KCen_AU
dc.contributor.authorStuder, AJen_AU
dc.contributor.authorIkeda, Nen_AU
dc.date.accessioned2024-12-12T23:19:46Zen_AU
dc.date.available2024-12-12T23:19:46Zen_AU
dc.date.issued2019-03-15en_AU
dc.date.statistics2024-12-11en_AU
dc.description.abstractWe report a wide-range reciprocal space observation with neutron diffraction in an iron vacancy controlled YbFe2O4 crystal, which is proposed as a prototype of electronic ferroelectrics arising from iron charge ordering. The increase of the charge ordering transition temperature and the disappearance of spin competitive transition were discovered in this stoichiometric crystal. We suppose that the lower ionic deficiency of this crystal enhances the development of spin and charge order coherence length, and consequently, the intrinsic nature of spin and charge ordering of YbFe2O4 could be detected. The experiment was performed with a two-dimensional neutron detector, and all super-lattice spots and its modulations above magnetic ordering temperature TN = 245 K are successfully explained with six domains of a monoclinic charge-order super-lattice cell. A rather extended two dimensional (2D) spin correlation above TN was identified with polarized 3He neutron spin filter and we found a clear indication of a coupling between the 2D spin correlation and charge ordering between TN and 300 K, at which a new lattice distortion phase may set in. ©2019 The Physical Society of Japan.en_AU
dc.description.sponsorshipWe acknowledge the support from the Australian Centre for Neutron Scattering, Australian Nuclear Science and Technology Organization, for providing the neutron research facilities used in this work (Proposal No. 5310). Travel expenses for the ANSTO experiment at WOMBAT and TAIPAN in ANSTO, Australia, were supported by the General User Program for Neutron Scattering Experiments, Institute for Solid State Physics, The University of Tokyo (Proposal No. NSL-00000528), at JRR-3, Japan Atomic Energy Agency, Tokai, Japan. The stay of Kosuke Fujiwara in CentraleSupélec was supported by the Erasmus Mundus EASED programme (Grant 2012-5538/004-001) coordinated by CentraleSupélec. This work was partially supported by a Grant-in-Aid from Izumi Science and Technology Foundation (No. H27-J-207). This work was also supported by a Grant-in-Aid for JSPS Research Fellow (No. 18J10004).en_AU
dc.identifier.citationFujiwara, K., Karasudani, T., Kakurai, K., Lee, W. T., Rule, K. C., Studer, A. J., & Ikeda, N. (2019). Stabilization of spin and charge ordering in stoichiometric YbFe2O4. Journal of the Physical Society of Japan, 88(4), 044701. doi:10.7566/JPSJ.88.044701en_AU
dc.identifier.issn0031-9015en_AU
dc.identifier.issn1347-4073en_AU
dc.identifier.issue4en_AU
dc.identifier.journaltitleJournal of the Physical Society of Japanen_AU
dc.identifier.urihttps://doi.org/10.7566/jpsj.88.044701en_AU
dc.identifier.urihttps://apo.ansto.gov.au/handle/10238/15822en_AU
dc.identifier.volume88en_AU
dc.languageEnglishen_AU
dc.language.isoenen_AU
dc.publisherPhysical Society of Japanen_AU
dc.relation.uri044701en_AU
dc.subjectSpinen_AU
dc.subjectStabilizationen_AU
dc.subjectChargesen_AU
dc.subjectYtterbiumen_AU
dc.subjectIronen_AU
dc.subjectCrystalsen_AU
dc.subjectNeutron diffractionen_AU
dc.subjectSubstoichiometryen_AU
dc.titleStabilization of spin and charge ordering in stoichiometric YbFe2O4en_AU
dc.typeJournal Articleen_AU
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