Linked Life Data

19257758

Source:http://linkedlifedata.com/resource/pubmed/id/19257758

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
8
pubmed:dateCreated
2009-3-4
pubmed:abstractText
We 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.
pubmed:language
eng
pubmed:journal
pubmed:status
PubMed-not-MEDLINE
pubmed:month
Feb
pubmed:issn
0031-9007
pubmed:author
pubmed:issnType
Print
pubmed:day
27
pubmed:volume
102
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
086401
pubmed:year
2009
pubmed:articleTitle
Strong mass renormalization at a local momentum space in multiorbital Ca1.8Sr0.2RuO4.
pubmed:affiliation
Institute for Solid State Physics, University of Tokyo, Kashiwa, Chiba 277-8581, Japan.
pubmed:publicationType
Journal Article