论文标题

BCS样的Bogolon介导的超导性金属二分法中的超导性理论

Theory of BCS-like bogolon-mediated superconductivity in transition metal dichalcogenides

论文作者

Sun, Meng, Parafilo, A., Villegas, K. H. A., Kovalev, V. M., Savenko, I. G.

论文摘要

我们报告了BCS样超导性的一种新型机制,该机制是由一对Bogoliubov Quasiparticles(Bogolons)介导的。它发生在由Bose-Einstein冷凝物附近的过渡金属二甲基单层单层中的二维电子气体组成的混合系统中。我们以二维间接激子作为测试地面的方式表明,Bogolon Pair介导的电子配对机制比声子介导的和单个Bogolon介导的系统更强。我们基于Schrieffer-Wolff转换和Gor'kov方程,开发了Bogolon Pair介导的超导性超导性的微观理论,研究了超导间隙的温度依赖性,并估算了超导过渡的临界温度,用于各种电子气体和冷凝水浓度的浓度。

We report on a novel mechanism of BCS-like superconductivity, mediated by a pair of Bogoliubov quasiparticles (bogolons). It takes place in hybrid systems consisting of a two-dimensional electron gas in a transition metal dichalcogenide monolayer in the vicinity of a Bose-Einstein condensate. Taking a system of two-dimensional indirect excitons as a testing ground we show, that the bogolon-pair-mediated electron pairing mechanism is stronger than phonon-mediated and single bogolon-mediated ones. We develop a microscopic theory of bogolon-pair-mediated superconductivity, based on the Schrieffer-Wolff transformation and the Gor'kov's equations, study the temperature dependence of the superconducting gap and estimate the critical temperature of superconducting transition for various concentrations of the electron gas and the condensate densities.

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