| Polaron Energy and Effective Mass in Parabolic Quantum Wells |
| |
| 引用本文： | 王志平 梁希侠. Polaron Energy and Effective Mass in Parabolic Quantum Wells[J]. 中国物理快报, 2005, 22(9): 2367-2370 |
| |
| 作者姓名： | 王志平 梁希侠 |
| |
| 作者单位： | [1]Department of Physics, Inner Mongolia University, Hohhot 010021 [2]CCAST （World Laboratory）, PO Box 8730, Beijing 100080 |
| |
| 基金项目： | Supported by the National Natural Science Foundation of China under Grant No 10164003, and the Natural Science Foundation of Inner Mongol of China under Grant No 200408020101. |
| |
| 摘 要： |
|
| 关 键 词： | 极化子能量 量子论 矩阵 有限元分析 |
| 收稿时间： | 2005-04-13 |
| 修稿时间： | 2005-04-13 |
Polaron Energy and Effective Mass in Parabolic Quantum Wells |
| |
| Wang ZhiPing;Liang XiXia. Polaron Energy and Effective Mass in Parabolic Quantum Wells[J]. Chinese Physics Letters, 2005, 22(9): 2367-2370 |
| |
| Authors: | Wang ZhiPing Liang XiXia |
| |
| Abstract: | The energy and effective mass of a polaron in a parabolic quantum well are studied theoretically by using LLP-like transformations and a variational approach. Numerical results are presented for the polaron energy and effective mass in the GaAs/Al0.3Ga0.7As parabolic quantum well. The results show that the energy and the effective mass of the polaron both have their maxima in the finite parabolic quantum well but decrease monotonously in the infinite parabolic quantum well with the increasing well width. It is verified that the bulk longitudinal optical phonon mode approximation is an adequate formulation for the electron-phonon coupling in parabolic quantum well structures. |
| |
| Keywords: | |
| 本文献已被 维普 等数据库收录！ |
