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Title: Evidence for an energy scale for quasiparticle dispersion in Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 8}

Abstract

Quasiparticle dispersion in Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 8} is investigated with improved angular resolution as a function of temperature and doping. Unlike the linear dispersion predicted by the band calculation, the data show a sharp break in dispersion at 50+/15 meV binding energy where the velocity changes by a factor of two or more. This change provides an energy scale in the quasiparticle self-energy. This break in dispersion is evident at and away from the d-wave node line, but the magnitude of the dispersion change decreases with temperature and with increasing doping.

Authors:
; ; ; ; ; ; ; ; ; ;
Publication Date:
Research Org.:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE Director, Office of Science. Office of Basic Energy Studies. Division of Materials Sciences (US)
OSTI Identifier:
791778
Report Number(s):
LBNL-46207
Journal ID: ISSN 0031-9007; PRLTAO; R&D Project: A580SS; TRN: US0200720
DOE Contract Number:  
AC03-76SF00098
Resource Type:
Journal Article
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 85; Journal Issue: 12; Other Information: Journal Publication Date: Sept. 18, 2000; PBD: 1 Jun 2000; Journal ID: ISSN 0031-9007
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; BISMUTH OXIDES; STRONTIUM OXIDES; CALCIUM OXIDES; COPPER OXIDES; BINDING ENERGY; DIFFUSION; HIGH-TC SUPERCONDUCTORS; SUPERCONDUCTIVITY BI2212 ELECTRONIC STRUCTURE ARPES DISPERSION KINK

Citation Formats

Bogdanov, P.V., Lanzara, A., Kellar, S.A., Zhou, X.J., Lu E.D, Zheng, W., Gu, G., Shimoyama, J.-I., Kishio, K., Hussain, Z., and Shen, Z.X. Evidence for an energy scale for quasiparticle dispersion in Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 8}. United States: N. p., 2000. Web. doi:10.1103/PhysRevLett.85.2581.
Bogdanov, P.V., Lanzara, A., Kellar, S.A., Zhou, X.J., Lu E.D, Zheng, W., Gu, G., Shimoyama, J.-I., Kishio, K., Hussain, Z., & Shen, Z.X. Evidence for an energy scale for quasiparticle dispersion in Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 8}. United States. doi:10.1103/PhysRevLett.85.2581.
Bogdanov, P.V., Lanzara, A., Kellar, S.A., Zhou, X.J., Lu E.D, Zheng, W., Gu, G., Shimoyama, J.-I., Kishio, K., Hussain, Z., and Shen, Z.X. Thu . "Evidence for an energy scale for quasiparticle dispersion in Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 8}". United States. doi:10.1103/PhysRevLett.85.2581.
@article{osti_791778,
title = {Evidence for an energy scale for quasiparticle dispersion in Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 8}},
author = {Bogdanov, P.V. and Lanzara, A. and Kellar, S.A. and Zhou, X.J. and Lu E.D and Zheng, W. and Gu, G. and Shimoyama, J.-I. and Kishio, K. and Hussain, Z. and Shen, Z.X.},
abstractNote = {Quasiparticle dispersion in Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 8} is investigated with improved angular resolution as a function of temperature and doping. Unlike the linear dispersion predicted by the band calculation, the data show a sharp break in dispersion at 50+/15 meV binding energy where the velocity changes by a factor of two or more. This change provides an energy scale in the quasiparticle self-energy. This break in dispersion is evident at and away from the d-wave node line, but the magnitude of the dispersion change decreases with temperature and with increasing doping.},
doi = {10.1103/PhysRevLett.85.2581},
journal = {Physical Review Letters},
issn = {0031-9007},
number = 12,
volume = 85,
place = {United States},
year = {2000},
month = {6}
}