A new variational method for the coupling system of polaron in a quantum well
文献类型：期刊论文
| 作者 | T. Z. Li ; K. L. Wang ; J. L. Yang ; Q. H. Chen |
| 刊名 | Physica Status Solidi B-Basic Research
 |
| 出版日期 | 1999 |
| 卷号 | 212期号:2页码:271-279 |
| 关键词 | electron-phonon interaction optical phonons dielectric slab ground-state interface energy |
| ISSN号 | 0370-1972 |
| 中文摘要 | In this paper, the polaron in a quasi-two-dimensional quantum well (QW) is studied by using a new variational method. A nonlinear differential-integral equation of wavefunction of the confined electron is given, and the effect on the wavefunction due Co the electron-phonon coupling has been considered in the derivation. Within this approach, the energy of the polaron and the corresponding electronic wavefunction can be obtained self-consistently from the differential-integral equation. As a typical example, the self-energy of the polaron ground state and the wavefunction of the electron are investigated for a GaAs/AlAs QW. It is shown that, for a relatively strong effective coupling, the polaron has a larger self-energy in comparison to a previous work where the authors used the unperturbed electronic wavefunction neglecting the effect due to the electron-phonon interaction. |
| 原文出处 | |
| 公开日期 | 2012-04-14 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/37407]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | T. Z. Li,K. L. Wang,J. L. Yang,et al. A new variational method for the coupling system of polaron in a quantum well[J]. Physica Status Solidi B-Basic Research,1999,212(2):271-279. |
| APA | T. Z. Li,K. L. Wang,J. L. Yang,&Q. H. Chen.(1999).A new variational method for the coupling system of polaron in a quantum well.Physica Status Solidi B-Basic Research,212(2),271-279. |
| MLA | T. Z. Li,et al."A new variational method for the coupling system of polaron in a quantum well".Physica Status Solidi B-Basic Research 212.2(1999):271-279. |
入库方式： OAI收割
来源：金属研究所
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