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pubmed-article:17962556rdf:typepubmed:Citationlld:pubmed
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pubmed-article:17962556pubmed:dateCreated2007-10-26lld:pubmed
pubmed-article:17962556pubmed:abstractTextMott transitions, which are metal-insulator transitions (MITs) driven by electron-electron interactions, are usually accompanied in bulk by structural phase transitions. In the layered perovskite Ca(1.9)Sr(0.1)RuO4, such a first-order Mott MIT occurs in the bulk at a temperature of 154 kelvin on cooling. In contrast, at the surface, an unusual inherent Mott MIT is observed at 130 kelvin, also on cooling but without a simultaneous lattice distortion. The broken translational symmetry at the surface causes a compressional stress that results in a 150% increase in the buckling of the Ca/Sr-O surface plane as compared to the bulk. The Ca/Sr ions are pulled toward the bulk, which stabilizes a phase more amenable to a Mott insulator ground state than does the bulk structure and also energetically prohibits the structural transition that accompanies the bulk MIT.lld:pubmed
pubmed-article:17962556pubmed:languageenglld:pubmed
pubmed-article:17962556pubmed:journalhttp://linkedlifedata.com/r...lld:pubmed
pubmed-article:17962556pubmed:statusPubMed-not-MEDLINElld:pubmed
pubmed-article:17962556pubmed:monthOctlld:pubmed
pubmed-article:17962556pubmed:issn1095-9203lld:pubmed
pubmed-article:17962556pubmed:authorpubmed-author:WangG TGTlld:pubmed
pubmed-article:17962556pubmed:authorpubmed-author:MooreR GRGlld:pubmed
pubmed-article:17962556pubmed:authorpubmed-author:FangZZlld:pubmed
pubmed-article:17962556pubmed:authorpubmed-author:JinRRlld:pubmed
pubmed-article:17962556pubmed:authorpubmed-author:PlummerE WEWlld:pubmed
pubmed-article:17962556pubmed:authorpubmed-author:MandrusDDlld:pubmed
pubmed-article:17962556pubmed:authorpubmed-author:ZhangJiandiJlld:pubmed
pubmed-article:17962556pubmed:authorpubmed-author:GuoJiandongJlld:pubmed
pubmed-article:17962556pubmed:authorpubmed-author:NascimentoV...lld:pubmed
pubmed-article:17962556pubmed:issnTypeElectroniclld:pubmed
pubmed-article:17962556pubmed:day26lld:pubmed
pubmed-article:17962556pubmed:volume318lld:pubmed
pubmed-article:17962556pubmed:ownerNLMlld:pubmed
pubmed-article:17962556pubmed:authorsCompleteYlld:pubmed
pubmed-article:17962556pubmed:pagination615-9lld:pubmed
pubmed-article:17962556pubmed:year2007lld:pubmed
pubmed-article:17962556pubmed:articleTitleA surface-tailored, purely electronic, mott metal-to-insulator transition.lld:pubmed
pubmed-article:17962556pubmed:affiliationDepartment of Physics and Astronomy, University of Tennessee, Knoxville, TN 37996, USA.lld:pubmed
pubmed-article:17962556pubmed:publicationTypeJournal Articlelld:pubmed
pubmed-article:17962556pubmed:publicationTypeResearch Support, U.S. Gov't, Non-P.H.S.lld:pubmed
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