| Rashba效应影响下三角量子阱中弱耦合极化子的有效质量(英文) |
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| 引用本文： | 张海瑞,肖景林.Rashba效应影响下三角量子阱中弱耦合极化子的有效质量(英文)[J].发光学报,2010,31(1):12-16. |
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| 作者姓名： | 张海瑞 肖景林 |
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| 作者单位： | 1. 内蒙古民族大学 物理与电子信息学院, 内蒙古 通辽 028043;2. 呼和浩特民族学院 数理系, 内蒙古 呼和浩特 010051 |
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| 基金项目： | Project supported by the National Science Foundation of China (10347004,10747002);;Project supported by the National Science Foundation of Hebei(A2008000465463)~~ |
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| 摘 要： | 采用改进的线性组合算符和幺正变换相结合的方法,导出了三角量子阱中弱耦合极化子的有效质量。讨论了极化子速度、电声子耦合常数和电子面密度对极化子有效质量的影响。通过对GaAs材料的数值计算结果表明:因为电-声子耦合作用和Rashba效应的存在,发现弱耦合极化子的有效质量由两部分组成,而且弱耦合极化子的有效质量随电声子耦合常数、电子面密度和极化子速度都发生了分裂。
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| 关 键 词： | 三角量子阱 自旋电子学 有效质量 Rashba效应 |
| 收稿时间： | 2008-12-08 |
The Effective Mass of Weakly-coupling Polaron in a Triangular Quantum Well Induced by the Rashba Effect |
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| ZHANG Hai-rui,XIAO Jing-lin.The Effective Mass of Weakly-coupling Polaron in a Triangular Quantum Well Induced by the Rashba Effect[J].Chinese Journal of Luminescence,2010,31(1):12-16. |
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| Authors: | ZHANG Hai-rui XIAO Jing-lin |
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| Institution: | 1. College of Physics and Electronic Information, Inner Mongolia National University, Tongliao 028043, China;2. Department of Mathematics and Physic, Huhhot University of Nationalities, Huhhot 010051, China |
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| Abstract: | Tokuda-modified linear-combination operator method and the unitary transformation method were used to study the properties of the weakly-coupling polaron,considering the influence of Rashba effect,which is brought by the spin-orbit(SO) interaction,in an semiconductor triangular quantum well(TQW).Numerical calculation on the GaAs TQW,as the example,is performed.The expressions for the effective mass of the polaron as a function of the velocity,the coupling constant and the electron area density were derived.... |
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| Keywords: | triangular quantum well spintronics effective mass Rashba SO interaction |
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