Inverse Faraday effect in graphene and Weyl semimetals
Inverse Faraday effect in graphene and Weyl semimetals
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DOI：
10.1103/physrevb.101.174429
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发表时间：
2020-03
影响因子：
3.7
通讯作者：
I. D. Tokman;Qianfan Chen;I. .. Shereshevsky;V. I. Pozdnyakova;I. Oladyshkin;M. Tokman;A. Belyanin
中科院分区：
文献类型：
--
作者：
I. D. Tokman;Qianfan Chen;I. .. Shereshevsky;V. I. Pozdnyakova;I. Oladyshkin;M. Tokman;A. Belyanin
我们报告了无质量狄拉克费米子材料中反法拉第效应的系统理论研究，包括石墨烯和拓扑绝缘体中的表面态等二维材料，以及狄拉克和韦尔半金属等三维材料。提出了半经典理论和量子理论，包括耗散效应和有限尺寸效应。我们发现，与传统半导体相比，狄拉克材料的效应强度要强得多。获得了低温极限下光感磁化强度的解析表达式。狄拉克材料中的强逆法拉第效应可用于磁化的光控制、全光调制和光隔离。
We report systematic theoretical studies of the inverse Faraday effect in materials with massless Dirac fermions, both in two dimensions such as graphene and surface states in topological insulators, and in three dimensions such as Dirac and Weyl semimetals. Both semiclassical and quantum theories are presented, with dissipation and finite-size effects included. We find that the magnitude of the effect can be much stronger in Dirac materials as compared to conventional semiconductors. Analytic expressions for the optically induced magnetization in the low-temperature limit are obtained. Strong inverse Faraday effect in Dirac materials can be used for the optical control of magnetization, all-optical modulation, and optical isolation.