Magnetization of two-dimensional heavy holes with boundaries in a perpendicular magnetic field

作     者：方诚 王志刚 李树深 张平 

作者机构：State Key Laboratory for Superlattices and Microstructures Institute of Semiconductors Chinese Academy of Sciences Physics Department East China Institute of Technology Institute of Applied Physics and Computational Mathematics Center for Applied Physics and Technology Peking University 

出 版 物：《Chinese Physics B》 (中国物理B（英文版）)

年 卷 期：2009年第18卷第10期

页      面：4430-4436页

核心收录：

学科分类：080903[工学-微电子学与固体电子学] 07[理学] 0809[工学-电子科学与技术（可授工学、理学学位）] 070205[理学-凝聚态物理] 08[工学] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0704[理学-天文学] 0702[理学-物理学] 

基　　金：Project supported by the National Natural Science Foundation of China (Grant Nos 60821061  60776061  10604010 and 60776063) 

主　　题：magnetization de Haas-van Alphen oscillations edge state Rashba spin-orbit coupling,heavy holes 

摘      要：The magnetisation of heavy holes in III-V semiconductor quantum wells with Rashba spin-orbit coupling （SOC） in an external perpendicular magnetic field is studied theoretically. We concentrate on the effects on the magnetisation induced by the system boundary, the l^ashba SOC and the temperature. It is found that the sawtooth-like de Haas- van Alphen （dHvA） oscillations of the magnetisation will change dramatically in the presence of such three factors. Especially, the effects of the edge states and Rashba SOC on the magnetisation are more evident when the magnetic field is smaller. The oscillation center will shift when the boundary effect is considered and the Rashba SOC will bring beating patterns to the dHvA oscillations. These effects on the dHvA oscillations are preferably observed at low temperatures. With increasing temperature, the dHvA oscillations turn to be blurred and eventually disappear.