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arXiv · 1608.01094

Anisotropic evolution of energy gap in Bi2212 superconductor

Artur P. Durajski
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Abstract

We present a systematic analysis of the energy gap in underdoped Bi2212 superconductor as a function of temperature and hole doping level. Within the framework of the theoretical model containing the electron-phonon and electron-electron-phonon pairing mechanism, we reproduced the measurement results of modern ARPES experiments with very high accuracy. We showed that the energy-gap amplitude is very weakly dependent on the temperature but clearly dependent on the level of doping. The evidence for a non-zero energy gap above the critical temperature, referred to as a pseudogap, was also obtained.

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Artur P. Durajski. 2016-08-03. Anisotropic evolution of energy gap in Bi2212 superconductor. https://doi.org/10.1007/s11467-016-0595-0

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