Temperature and doping dependence of the Bi-Sr-Ca-Cu-O electronic structure and fluctuation effects

A. G. Loeser, Z. X. Shen, Matthias Schabel, C. Kim, M. Zhang, A. Kapitulnik, P. Fournier

Research output: Contribution to journalArticle

66 Citations (Scopus)

Abstract

Angle-resolved photoemission data from bulk Bi2Sr2CaCu2O8+δ show changes in the excitation gap and line shape versus both doping and temperature. We employ two different quantitative analyses; one to search for a gap closing temperature T*, and the other to further characterize its relation to the superconducting transition temperature Tc. We present observations of the sharp feature near crystal momentum k=(1,0) in superconducting spectra, and its temperature and doping dependence. This temperature dependence is analyzed together with the shift in the spectral weight's lowest binding energy (leading edge). Finally, we find evidence for persistence of this sharp peak at temperatures slightly above Tc.

Original languageEnglish (US)
Pages (from-to)14185-14189
Number of pages5
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume56
Issue number21
StatePublished - Dec 1 1997
Externally publishedYes

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electronic structure
temperature dependence
low weight
closing
leading edges
temperature
line shape
photoelectric emission
binding energy
transition temperature
momentum
shift
excitation
crystals

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Temperature and doping dependence of the Bi-Sr-Ca-Cu-O electronic structure and fluctuation effects. / Loeser, A. G.; Shen, Z. X.; Schabel, Matthias; Kim, C.; Zhang, M.; Kapitulnik, A.; Fournier, P.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 56, No. 21, 01.12.1997, p. 14185-14189.

Research output: Contribution to journalArticle

Loeser, AG, Shen, ZX, Schabel, M, Kim, C, Zhang, M, Kapitulnik, A & Fournier, P 1997, 'Temperature and doping dependence of the Bi-Sr-Ca-Cu-O electronic structure and fluctuation effects', Physical Review B - Condensed Matter and Materials Physics, vol. 56, no. 21, pp. 14185-14189.
Loeser, A. G. ; Shen, Z. X. ; Schabel, Matthias ; Kim, C. ; Zhang, M. ; Kapitulnik, A. ; Fournier, P. / Temperature and doping dependence of the Bi-Sr-Ca-Cu-O electronic structure and fluctuation effects. In: Physical Review B - Condensed Matter and Materials Physics. 1997 ; Vol. 56, No. 21. pp. 14185-14189.
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