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Influence Of The Charge Concentration On The Density Of States In A Two-dimensional Superconducting System

机译:二维超导系统中电荷浓度对态密度的影响

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摘要

The gap and the density of states of high-T_c superconductors have been a subject of paramount interest. In order to explain the observed experimental behavior several pairing mechanisms in high-temperature superconductivity have been considered, by theoretical calculations. In this work, within the BCS scheme, a two-band model with energy band overlapping is introduced. The gap parameter and the density of states in a two-dimensional superconducting system are studied as functions of the charge concentration. This model is applied to Bi2212 in order to obtain numerical results.
机译:高T_c超导体的间隙和状态密度一直是最重要的主题。为了解释观察到的实验行为,通过理论计算已经考虑了高温超导中的几种配对机理。在这项工作中,在BCS方案内,引入了一个具有能带重叠的两频带模型。研究了二维超导系统中的间隙参数和态密度与电荷浓度的关系。此模型应用于Bi2212,以获得数值结果。

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