Anisotropic evolution of energy gap in Bi2212 superconductor

doi:10.1007/s11467-016-0595-0

Frontiers of Physics

2016, Vol. 11

Issue (5): 117408 https://doi.org/10.1007/s11467-016-0595-0

本期目录

Anisotropic evolution of energy gap in Bi2212 superconductor

A. P. Durajski(

)

Institute of Physics, Częstochowa University of Technology, Ave. Armii Krajowej 19, 42-200 Częstochowa, Poland

全文: PDF(11465 KB)

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.

Key words： high-temperature superconductors anisotropy energy gap Bi2212

收稿日期: 2016-02-12 出版日期: 2016-06-28

Corresponding Author(s): A. P. Durajski

引用本文:

. [J]. Frontiers of Physics, 2016, 11(5): 117408.
A. P. Durajski. Anisotropic evolution of energy gap in Bi2212 superconductor. Front. Phys. , 2016, 11(5): 117408.

链接本文:

https://academic.hep.com.cn/fop/CN/10.1007/s11467-016-0595-0
https://academic.hep.com.cn/fop/CN/Y2016/V11/I5/117408

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