Topological Properties of the Chiral Magnetic Effect in Multi-Weyl Semimetals
Topological Properties of the Chiral Magnetic Effect in Multi-Weyl Semimetals
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DOI：
10.1103/physrevb.96.085112
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发表时间：
2017-03
影响因子：
3.7
通讯作者：
Tomoya Hayata;Y. Kikuchi;Y. Tanizaki
中科院分区：
文献类型：
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作者：
Tomoya Hayata;Y. Kikuchi;Y. Tanizaki
我们基于手性动力学理论计算了多外尔半金属（多 WSM）中的手性磁效应（CME）。多WSM是具有多个单极电荷的WSM，在Weyl点附近具有非线性和各向异性色散关系，我们需要扩展具有线性色散关系的WSM中CME的传统计算。多 WSM 中 CME 的拓扑特性不仅针对静态磁场，而且还针对瞬态（动态）磁场进行了详细研究。我们提出了一种实验装置，通过隐藏在动态 CME 中的拓扑性质来测量多个单极子电荷。
We compute the chiral magnetic effect (CME) in multi-Weyl semimetals (multi-WSMs) based on the chiral kinetic theory. Multi-WSMs are WSMs with multiple monopole charges that have nonlinear and anisotropic dispersion relations near the Weyl points, and we need to extend the conventional computation of the CME in WSMs with linear dispersion relations. The topological properties of the CME in multi-WSMs are investigated in detail for not only static magnetic fields but also time-dependent (dynamic) ones. We propose an experimental setup to measure the multiple monopole charge via the topological nature hidden in the dynamic CME.