物理学报2012，Vol.61Issue(2)：393-399,7.
AlGaN/GaN量子阱中子带的Rashba自旋劈裂和子带间自旋轨道耦合作用研究
Study of Rashba spin splitting and intersubband spin-orbit coupling effect in AlGaN/GaN quantum wells
摘要
Abstract
Rashba spin splitting coefficients for the first two subbandsα1,α2 and intersubband spin-orbit coupling coefficientη_（12） are obtained by projecting the characteristic equation into the subspace of conduction band.Then Schrodinger and the Poisson equations are solved self-consistently to calculateα_1,α_2 andη_（12） under different gate voltages.Then contributions to the spin-orbit coupling coefficients from the well,the left and the right heterointerfaces and the left and the right barriers of the quantum well are discussed. Resulsts show that the spin-orbit coupling coefficient can be modulated by the gate voltage,and the intersubband spin-orbit coupling coefficients calculated here are a little smaller than the Rashba coefficientsα_1,α_2,but they are basically of the same order.关键词
Rashba自旋劈裂/子带间自旋轨道耦合/自恰计算/二维电子气Key words
Rashba spin splitting/intersubband spin-orbit coupling/self-consistent calculation/two dimensional electron gas分类
数理科学引用本文复制引用
李明,张荣,刘斌,傅德颐,赵传阵,谢自力,修向前,郑有炓..AlGaN/GaN量子阱中子带的Rashba自旋劈裂和子带间自旋轨道耦合作用研究[J].物理学报,2012,61(2):393-399,7.基金项目
国家自然科学基金 （）
国家重点基础研究发展计划 （）
国家高技术研究发展计划 （）
江苏省自然科学基金 （）
南京大学扬州光电研究院研发基金资助的课题~~ （）
