The European Physical Journal B ( IF 1.6 ) Pub Date : 2021-08-21 , DOI: 10.1140/epjb/s10051-021-00183-y Mariya Iv. Trukhanova 1, 2 , Pavel Andreev 1
|
Abstract
Due to the many unique transport properties of Weyl semimetals, they are promising materials for modern electronics. We investigate the electrons in the strong coupling approximation near Weyl points based on their representation as massless Weyl fermions. We have constructed a new fluid model based on the many-particle quantum hydrodynamics method to describe the behavior of electrons gas with different chirality near Weyl points in the low-energy limit in the external electromagnetic fields, based on the many-particle Weyl equation and many-particle wave function. The derived system of equations forms a closed apparatus for describing the dynamics of the electron current, spin density and spin current density. Based on the proposed model, we considered small perturbations in the Weyl fermion system in an external uniform magnetic field and predicted the new type of eigenwaves in the systems of the electrons near the Weyl points.
Graphic abstract
中文翻译：
物质凝聚态下外尔费米子的流体动力学描述
摘要
由于外尔半金属的许多独特传输特性，它们是现代电子产品的有前途的材料。我们基于它们作为无质量 Weyl 费米子的表示来研究 Weyl 点附近强耦合近似中的电子。我们基于多粒子量子流体动力学方法构建了一个新的流体模型，以描述外电磁场低能极限下外尔点附近具有不同手性的电子气的行为，基于多粒子外尔方程和多粒子波函数。导出的方程组形成了一个封闭的装置，用于描述电子电流、自旋密度和自旋电流密度的动力学。基于提出的模型，
京公网安备 11010802027423号