This article is cited in 3 papers

CONDENSED MATTER

Topological electronic transition in cuprate high-$T_c$ superconductors occurring before the superconducting transition

V. I. Sokolenko, V. A. Frolov

National Science Center Kharkov Institute of Physics and Technology, Kharkov, Ukraine

Abstract: It is shown for the first time that the superconducting transition in optimally doped Y- and Bi-based high-$T_c$ superconductors is preceded by the Lifshitz topological transition in their electron systems. A intense hole-electron conversion occurring in the system of charge carriers at $T=T_{\text{c}}+({\sim}\,10\,\text{K})$ is a clear cut signature of such transition.

Received: 28.03.2017
Revised: 12.04.2017

DOI: 10.7868/S0370274X17100083

 English version: Journal of Experimental and Theoretical Physics Letters, 2017, 105:10, 661–663

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