Chiral Magnetic Effect of Hot Electrons
Chiral Magnetic Effect of Hot Electrons
复制标题
热电子的手性磁效应
DOI：
10.1103/physrevlett.125.266601
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发表时间：
2020
影响因子：
8.6
通讯作者：
Pesin, D. A.
中科院分区：
文献类型：
--
作者：
Nandy, S.;Pesin, D. A.
我们提出了一种观察非中心对称Weyl半金属在强电场作用下的手征磁效应的方法，通过它们的非线性部分，即在外磁场中为奇的部分，或在电开路中为奇的磁场电压.这种效应依赖于这种材料的山谷选择性加热，这在一般情况下，导致非平衡山谷人口不平衡。在外加磁场的作用下，这种谷不平衡的外尔半金属通常会沿着磁场方向产生电流--手征磁效应。我们还讨论了一个具体的实验装置来观察手征磁效应的超热电子。
We propose a way to observe the chiral magnetic effect in noncentrosymmetric Weyl semimetals under the action of a strong electric field, via the nonlinear part of theircharacteristic that is odd in the external magnetic field, or odd-in-magnetic field voltages in electrically open circuits. This effect relies on valley-selective heating in such materials, which, in general, leads to nonequilibrium valley population imbalances. In the presence of an external magnetic field, such a valley-imbalanced Weyl semimetal will, in general, develop an electric current along the direction of the magnetic field—the chiral magnetic effect. We also discuss a specific experimental setup to observe the chiral magnetic effect of hot electrons.