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The Temperature Evolution of the Spectral Peak in High Temperature Superconductors

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.

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M. R. Norman, A. Kaminski, J. Mesot, J. C. Campuzano. 2000-12-18. The Temperature Evolution of the Spectral Peak in High Temperature Superconductors. https://doi.org/10.1103/physrevb.63.140508

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