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pubmed-article:17973381rdf:typepubmed:Citationlld:pubmed
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pubmed-article:17973381pubmed:issue46lld:pubmed
pubmed-article:17973381pubmed:dateCreated2007-11-16lld:pubmed
pubmed-article:17973381pubmed:abstractTextThe valence state change of BiNiO3 perovskite under pressure has been investigated by a powder neutron diffraction study and electronic-state calculations. At ambient pressure, BiNiO3 has the unusual charge distribution Bi(3+)(0.5)Bi(5+)(0.5)Ni(2+)O3 with ordering of Bi(3+) and Bi(5+)charges on the A sites of a highly distorted perovskite structure. High-pressure neutron diffraction measurements and bond valence sum calculations show that the pressure-induced melting of the charge disproportionated state leads to a simultaneous charge transfer from Ni to Bi, so that the high-pressure phase is metallic Bi(3+)Ni(3+)O3. This unprecedented charge transfer between A and B site cations coupled to electronic instabilities at both sites leads to a variety of ground states, and it is predicted that a Ni-charge disproportionated state should also be observable.lld:pubmed
pubmed-article:17973381pubmed:languageenglld:pubmed
pubmed-article:17973381pubmed:journalhttp://linkedlifedata.com/r...lld:pubmed
pubmed-article:17973381pubmed:statusPubMed-not-MEDLINElld:pubmed
pubmed-article:17973381pubmed:monthNovlld:pubmed
pubmed-article:17973381pubmed:issn0002-7863lld:pubmed
pubmed-article:17973381pubmed:authorpubmed-author:TsujimotoMasa...lld:pubmed
pubmed-article:17973381pubmed:authorpubmed-author:RodgersJennif...lld:pubmed
pubmed-article:17973381pubmed:authorpubmed-author:AzumaMasakiMlld:pubmed
pubmed-article:17973381pubmed:authorpubmed-author:AttfieldJ...lld:pubmed
pubmed-article:17973381pubmed:authorpubmed-author:TakanoMikioMlld:pubmed
pubmed-article:17973381pubmed:authorpubmed-author:IsodaSeijiSlld:pubmed
pubmed-article:17973381pubmed:authorpubmed-author:TuckerMatthew...lld:pubmed
pubmed-article:17973381pubmed:authorpubmed-author:IshiwataShint...lld:pubmed
pubmed-article:17973381pubmed:authorpubmed-author:ShimakawaYuic...lld:pubmed
pubmed-article:17973381pubmed:authorpubmed-author:CarlssonSandr...lld:pubmed
pubmed-article:17973381pubmed:issnTypePrintlld:pubmed
pubmed-article:17973381pubmed:day21lld:pubmed
pubmed-article:17973381pubmed:volume129lld:pubmed
pubmed-article:17973381pubmed:ownerNLMlld:pubmed
pubmed-article:17973381pubmed:authorsCompleteYlld:pubmed
pubmed-article:17973381pubmed:pagination14433-6lld:pubmed
pubmed-article:17973381pubmed:year2007lld:pubmed
pubmed-article:17973381pubmed:articleTitlePressure-induced intermetallic valence transition in BiNiO3.lld:pubmed
pubmed-article:17973381pubmed:affiliationInstitute for Chemical Research, Kyoto University, Uji, Kyoto-fu 611-0011, Japan. masaki@scl.kyoto-u.ac.jplld:pubmed
pubmed-article:17973381pubmed:publicationTypeJournal Articlelld:pubmed
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