| p型半导体量子阱的有效计算方法 |
| |
| 引用本文： | 薛舫时. p型半导体量子阱的有效计算方法[J]. 固体电子学研究与进展, 2005, 25(4): 427-431,436 |
| |
| 作者姓名： | 薛舫时 |
| |
| 作者单位： | 南京电子器件研究所,南京,210016 |
| |
| 基金项目： | 科技预研基金资助的课题（J8.4.4DZ6506） |
| |
| 摘 要： | 提出一种p型半导体量子阱中二维空穴气的有效计算方法。它使用半轴向近似把Luttinger哈密顿简约成3*3矩阵,而仍保留价带的扭曲性和重空穴、轻空穴和自旋-轨道耦合带间的能带混合。使用这种方法和简化的有限差分算出了p型半导体量子阱的价带结构和二维空穴气。研究了量子阱中的价带混合、能带扭曲和阱间空穴气的耦合。该方法计算量少,计算结果满足价带特性,适用于p型异质结器件的优化设计。
|
| 关 键 词： | 二维空穴气 p型量子阱 量子限制 能带混合 |
| 文章编号： | 1000-3819（2005）04-427-05 |
| 收稿时间： | 2004-01-07 |
| 修稿时间： | 2004-01-072004-05-13 |
An Effective Computation Method for p-type Semiconductor Quantum Well |
| |
| XUE Fangshi. An Effective Computation Method for p-type Semiconductor Quantum Well[J]. Research & Progress of Solid State Electronics, 2005, 25(4): 427-431,436 |
| |
| Authors: | XUE Fangshi |
| |
| Affiliation: | Nanjing Electronic Devices Institute, Na njing , 210016, CHN |
| |
| Abstract: | An effective computation method for two dimensional hole gas in p-type semiconductor quantum well is proposed in this paper,which reduces the Luttinger Hamiltonian into 33 matrices using a semiaxial approximation and still retaining the warping property of valence band and the coupling of heavy,light,and spin-off holes. The valence band structure of p-type heterostructure quantum well and two-dimensional hole gas are calculated by this method and the reduced finite difference calculation. The valence band mixing in quantum well,the band warping,and the hole gases coupling between quantum wells are investigated.Its amount of computation is less and the computed results satisfy the valence band characteristic so that it is suitable for the optimum design of p-type heterostructure devices. |
| |
| Keywords: | two-dimensional hole gas p-type quantum well quantum confinement band mixing |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
