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

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

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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.

Casimir torquetwo-dimensional electron gasspin-orbit interaction

Jia-Nan Rong、Liang Chen、Kai Chang

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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

School of Mathematics and Physics,North China Electric Power University,Beijing 102206,China

School of Physics,Zhejiang University,Hangzhou 310027,China

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Strategic Priority Research Program of the Chinese Academy of SciencesStrategic Priority Research Program of the Chinese Academy of SciencesStrategic Priority Research Program of the Chinese Academy of SciencesNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaMinistry of Science and Technology of the People's Republic of China

XDB0460000XDB28000000XDPB229226520311974340121741012018YFA0306-101

2024

10.1007/s11433-024-2399-7

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
年,卷(期)：2024.67(8)