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Collective Modes and the Superconducting State Spectral Function of Bi2212

M. R. Norman·H. Ding
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Abstract

Photoemission spectra of the high temperature superconductor Bi2212 near (pi,0) show a dramatic change when cooling below Tc: the broad peak in the normal state turns into a sharp low energy peak followed by a higher binding energy hump. Recent experiments find that this low energy peak persists over a significant range in momentum space. We show in this paper that these data are well described by a simple model of electrons interacting with a collective mode which appears only below Tc.

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M. R. Norman, H. Ding. 1997-12-10. Collective Modes and the Superconducting State Spectral Function of Bi2212. https://doi.org/10.1103/physrevb.57.r11089

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