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pubmed-article:19257758rdf:typepubmed:Citationlld:pubmed
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pubmed-article:19257758pubmed:issue8lld:pubmed
pubmed-article:19257758pubmed:dateCreated2009-3-4lld:pubmed
pubmed-article:19257758pubmed:abstractTextWe have studied the mass renormalization in Ca2-xSrxRuO4 (x=0.2) using high-resolution angle-resolved photoemission spectroscopy. We observed precise band dispersions near the Fermi level (E_{F}) and the corresponding Fermi surfaces. A characteristic flat band with approximately 4 meV dispersion accompanying sharp quasiparticle (QP) peaks shows up in a limited momentum region around (pi, 0). The QP peak rapidly evolves below the crossover temperature T;{*} approximately 20 K, which agrees well with the mass enhancement behavior indicated by thermal, magnetic, and transport properties. We discuss the origin of the mass renormalization in relation to the local flat band at (pi, 0) possibly derived from the gamma (d_{xy}) band.lld:pubmed
pubmed-article:19257758pubmed:languageenglld:pubmed
pubmed-article:19257758pubmed:journalhttp://linkedlifedata.com/r...lld:pubmed
pubmed-article:19257758pubmed:statusPubMed-not-MEDLINElld:pubmed
pubmed-article:19257758pubmed:monthFeblld:pubmed
pubmed-article:19257758pubmed:issn0031-9007lld:pubmed
pubmed-article:19257758pubmed:authorpubmed-author:TsudaSSlld:pubmed
pubmed-article:19257758pubmed:authorpubmed-author:IshizakiSSlld:pubmed
pubmed-article:19257758pubmed:authorpubmed-author:ShinSSlld:pubmed
pubmed-article:19257758pubmed:authorpubmed-author:MaenoYYlld:pubmed
pubmed-article:19257758pubmed:authorpubmed-author:NakatsujiSSlld:pubmed
pubmed-article:19257758pubmed:authorpubmed-author:ShimoyamadaAAlld:pubmed
pubmed-article:19257758pubmed:issnTypePrintlld:pubmed
pubmed-article:19257758pubmed:day27lld:pubmed
pubmed-article:19257758pubmed:volume102lld:pubmed
pubmed-article:19257758pubmed:ownerNLMlld:pubmed
pubmed-article:19257758pubmed:authorsCompleteYlld:pubmed
pubmed-article:19257758pubmed:pagination086401lld:pubmed
pubmed-article:19257758pubmed:year2009lld:pubmed
pubmed-article:19257758pubmed:articleTitleStrong mass renormalization at a local momentum space in multiorbital Ca1.8Sr0.2RuO4.lld:pubmed
pubmed-article:19257758pubmed:affiliationInstitute for Solid State Physics, University of Tokyo, Kashiwa, Chiba 277-8581, Japan.lld:pubmed
pubmed-article:19257758pubmed:publicationTypeJournal Articlelld:pubmed