The Temperature Evolution of the Spectral Peak in High Temperature Superconductors

M. R. Norman; A. Kaminski; J. Mesot; J. C. Campuzano

doi:10.1103/PhysRevB.63.140508

The Temperature Evolution of the Spectral Peak in High Temperature Superconductors

Superconductivity 2009-10-31 v1

Authors: M. R. Norman , A. Kaminski , J. Mesot , J. C. Campuzano

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Abstract

Recent photoemission data in the high temperature cuprate superconductor Bi2212 have been interpreted in terms of a sharp spectral peak with a temperature independent lifetime, whose weight strongly decreases upon heating. By a detailed analysis of the data, we are able to extract the temperature dependence of the electron self-energy, and demonstrate that this intepretation is misleading. Rather, the spectral peak loses its integrity above Tc due to a large reduction in the electron lifetime.

Keywords

high-temperature superconductors spectral peak temperature evolution electron self-energy photoemission

Cite

@article{arxiv.cond-mat/0012335,
  title  = {The Temperature Evolution of the Spectral Peak in High Temperature Superconductors},
  author = {M. R. Norman and A. Kaminski and J. Mesot and J. C. Campuzano},
  journal= {arXiv preprint arXiv:cond-mat/0012335},
  year   = {2009}
}

Comments

5 pages, revtex, 4 encapsulated postscript figures

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