论文标题

波动式转运在波动的伊斯丁超导体中

Photogalvanic transport in fluctuating Ising superconductors

论文作者

Parafilo, A. V., Boev, M. V., Kovalev, V. M., Savenko, I. G.

论文摘要

在统一的外部电磁场的作用下,在波动方案中的二维非中心液体中,由于山谷的三角形扭曲而产生了两种贡献。第一个贡献源于电子气体在其正常状态下的电流,而第二个贡献是Aslamazov-larkin的性质:当环境温度接近(从上方)样本中超导过渡的温度时,它源于波动库珀对的存在。提高山谷退化的方法是应用弱的外部外部磁场产生Zeeman效应。在正常状态下电子气体的玻尔兹曼方程方法和波动库珀对的时间依赖的金兹堡 - 兰道方程允许研究二维过渡金属二甲基元基因元素中的光藻电流。

In a two-dimensional noncentrosymmetric Ising superconductor in the fluctuating regime under the action of a uniform external electromagnetic field there emerge two contributions to the photogalvanic effect due to the trigonal warping of the valleys. The first contribution stems from the current of the electron gas in its normal state, while the second contribution is of Aslamazov-Larkin nature: it originates from the presence of fluctuating Cooper pairs when the ambient temperature approaches (from above) the temperature of superconducting transition in the sample. The way to lift the valley degeneracy is the application of a weak out-of-plane external magnetic field producing a Zeeman effect. The Boltzmann equations approach for the electron gas in the normal state and the time-dependent Ginzburg-Landau equations for the fluctuating Cooper pairs allow for the study of the photogalvanic current in two-dimensional transition metal dichalcogenide Ising superconductors.

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