Charge Order Superstructure with Integer Iron Valence in Fe2OBO3

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dc.creatorAngst, M.
dc.creatorKhalifah, P.
dc.creatorHermann, R. P.
dc.creatorXiang, H. J.
dc.creatorWhangbo, M. -H.
dc.creatorVaradarajan, V.
dc.creatorBrill, J. W.
dc.creatorSales, B. C.
dc.creatorMandrus, D.
dc.date2007-07-18
dc.date.accessioned2026-07-07T08:24:52Z
dc.date.available2026-07-07T08:24:52Z
dc.descriptionSolution-grown single crystals of Fe2OBO3 were characterized by specific heat, Mossbauer spectroscopy, and x-ray diffraction. A peak in the specific heat at 340 K indicates the onset of charge order. Evidence for a doubling of the unit cell at low temperature is presented. Combining structural refinement of diffraction data and Mossbauer spectra, domains with diagonal charge order are established. Bond-valence-sum analysis indicates integer valence states of the Fe ions in the charge ordered phase, suggesting Fe2OBO3 is the clearest example of ionic charge order so far.
dc.description4 pages, 5 figures. Fig. 3 is available in higher resolution from the authors. PRL in print
dc.identifierhttps://arxiv.org/abs/0707.2743
dc.identifierhttp://arxiv.org/abs/0707.2743
dc.identifierPhys. Rev. Lett. 99, 086403 (2007)
dc.identifierdoi:10.1103/PhysRevLett.99.086403
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/136491
dc.subjectStrongly Correlated Electrons
dc.subjectMaterials Science
dc.titleCharge Order Superstructure with Integer Iron Valence in Fe2OBO3
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