A new variational method for the coupling system of polaron in a quantum well

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	A new variational method for the coupling system of polaron in a quantum well
	T. Z. Li; K. L. Wang; J. L. Yang; Q. H. Chen
	1999
发表期刊	Physica Status Solidi B-Basic Research
ISSN	0370-1972
卷号	212 期号:2 页码:271-279
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.
部门归属	shanghai jiao tong univ, dept appl phys, shanghai 200240, peoples r china. chinese acad sci, int ctr mat phys, shenyang 100015, peoples r china. zhejiang univ, dept phys, hangzhou 310027, peoples r china. univ sci & technol china, ctr fundamental phys, hefei 230026, anhui, peoples r china.;li, tz (reprint author), shanghai jiao tong univ, dept appl phys, shanghai 200240, peoples r china
关键词	Electron-phonon Interaction Optical Phonons Dielectric Slab Ground-state Interface Energy
URL	查看原文
WOS记录号	WOS:000079824300008
引用统计	被引频次：2[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/37407
专题	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.