论文标题

马格努斯·内尔特(Magnus Nernst)和热厅效应

Magnus Nernst and thermal Hall effect

论文作者

Mandal, Debottam, Das, Kamal, Agarwal, Amit

论文摘要

在本文中,由于最近对倒置对称性的系统中Magnus Hall效应的预测,在本文中,我们研究了Magnus Nernst效应和Magnus热厅效应。在存在一个内部电场的情况下,具有有限浆果曲率的电子的自旋转波包产生垂直于两者的马格努斯速度。这种异常的马格努斯速度产生了Magnus Hall的运输,该速度表现在所有四个电热运输系数中。在本文中,我们使用半经典的Boltzmann形式主义证明了单层WTE2中的Magnus Nernst和Magnus热厅效应的存在,并散布了双层石墨烯。我们表明,Magnus速度也可以引起大块石墨烯中的Magnus Valley Hall效应。马格努斯速度可用于实验探测浆果曲率以及新型电气和电热器件的设计。

Motivated by the recent prediction of the Magnus Hall effect in systems with broken inversion symmetry, in this paper we study the Magnus Nernst effect and the Magnus thermal Hall effect. In presence of an in-built electric field, the self rotating wave-packets of electrons with finite Berry curvature generate a Magnus velocity perpendicular to both. This anomalous Magnus velocity gives rise to the Magnus Hall transport which manifests in all four electro-thermal transport coefficients. In this paper, we demonstrate the existence of the Magnus Nernst and Magnus thermal Hall effect in monolayer WTe2 and gapped bilayer graphene, using the semiclassical Boltzmann formalism. We show that the Magnus velocity can also give rise to Magnus valley Hall effect in gapped graphene. Magnus velocity can be useful for experimentally probing the Berry curvature, and design of novel electrical and electro-thermal devices.

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