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 c + (~10 K) is a clear cut signature of such transition.
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Original Russian Text © V.I. Sokolenko, V.A. Frolov, 2017, published in Pis’ma v Zhurnal Eksperimental’noi i Teoreticheskoi Fiziki, 2017, Vol. 105, No. 10, pp. 621–623.
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Sokolenko, V.I., Frolov, V.A. Topological electronic transition in cuprate high-T c superconductors occurring before the superconducting transition. Jetp Lett. 105, 661–663 (2017). https://doi.org/10.1134/S0021364017100125
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DOI: https://doi.org/10.1134/S0021364017100125