中国科学:物理学 力学 天文学(英文版)2024，Vol.67Issue(8) ：134-142.DOI:10.1007/s11433-024-2399-7

Spin-orbit interaction induced Casimir-Lifshitz torque between two-dimensional electron gases

Jia-Nan Rong Liang Chen Kai Chang
中国科学:物理学 力学 天文学(英文版)2024，Vol.67Issue(8) ：134-142.DOI:10.1007/s11433-024-2399-7
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  • 维普
  • 万方数据

Spin-orbit interaction induced Casimir-Lifshitz torque between two-dimensional electron gases

Jia-Nan Rong 1Liang Chen 2Kai Chang3
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作者信息

  • 1. State Key Laboratory of Superlattices and Microstructures,Institute of Semiconductors,Chinese Academy of Sciences,Beijing 100083,China;College of Materials Science and Opto-Electronic Technology,University of Chinese Academy of Sciences,Beijing 100049,China
  • 2. School of Mathematics and Physics,North China Electric Power University,Beijing 102206,China
  • 3. State Key Laboratory of Superlattices and Microstructures,Institute of Semiconductors,Chinese Academy of Sciences,Beijing 100083,China;School of Physics,Zhejiang University,Hangzhou 310027,China
  • 折叠

Abstract

We investigate theoretically the Casimir interaction between two parallel two-dimensional electron gases(2DEGs)with Rashba and Dresselhaus spin-orbit interactions(SOIs),based on the quantum field theory.We derive an analytical expression for the polarization tensor and obtain the solution to the motion equation of the electromagnetic(EM)field.We calculate the Casimir-Lifshitz torque(CLT)between two parallel 2DEGs with Rashba and Dresselhaus SOIs,which can be tuned by changing the relative strength between two SOIs.The anisotropic Casimir energy between 2DEGs caused by the interplay between the SOIs of 2DEGs offers a new origin of CLT and a new type of optoelectronic device.

Key words

Casimir torque/two-dimensional electron gas/spin-orbit interaction

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基金项目

Strategic Priority Research Program of the Chinese Academy of Sciences(XDB0460000)

Strategic Priority Research Program of the Chinese Academy of Sciences(XDB28000000)

Strategic Priority Research Program of the Chinese Academy of Sciences(XDPB22)

National Natural Science Foundation of China(92265203)

National Natural Science Foundation of China(11974340)

National Natural Science Foundation of China(12174101)

Ministry of Science and Technology of the People's Republic of China(2018YFA0306-101)

出版年

2024
中国科学:物理学 力学 天文学(英文版)
中国科学院

中国科学:物理学 力学 天文学(英文版)

CSTPCD
影响因子：0.91
ISSN：1674-7348
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