Origin of shadow bands in high-T-c cuprate superconductors studied by high-resolution angle-resolved photoemission spectroscopy

TitleOrigin of shadow bands in high-T-c cuprate superconductors studied by high-resolution angle-resolved photoemission spectroscopy
Publication TypeJournal Article
Year of Publication2007
AuthorsNakayama K, Dobashi T, Sato T, Takahashi T, Kondo T, Takeuchi T, Kudo K, Kobayashi N
Journal TitlePhysica C-Superconductivity and Its Applications
Volume463
Pages48-51
Date PublishedOct
Type of ArticleProceedings Paper
ISBN Number0921-4534
Accession NumberISI:000250396000013
KeywordsARPES, bi2sr2cacu2o8+delta, electronic structure, high-T-c superconductor
Abstract

We report high-resolution angle-resolved photoemission spectroscopy on single-layered cuprate superconductor (Bi,Pb)(2)(Sr,La)2CuO(6/6) as a function of temperature and doping level, to elucidate the origin of shadow band (SB). We found that the intensity of SB is invariable with respect to temperature, doping, and substitution constituents of block layers, indicating that antiferromagnetic correlation is not responsible for the emergence of SB. Observation of similar SB in Bi2Sr2CaCu2O8+delta and La1.85Sr0.15CuO4, but not in YBa2Cu3O7-delta further supports the structural origin of SB. (C) 2007 Elsevier B.V. All rights reserved.

DOI10.1016/j.physc.2007.04.227
Alternate JournalPhysica C