標題: The effect of electron-phonon interaction on the impurity binding energy in a quantum well
作者: Chen, YN
Chuu, DS
Lin, YK
電子物理學系
Department of Electrophysics
公開日期: 25-十月-1999
摘要: The effect of confined electron-optical phonon interaction on the hydrogenic impurity binding energy in a quantum well is studied. By using the Landau and Pekar variational method, the Hamiltonian is separated into two parts which contain phonon variables and electron variables. A perturbative-variational technique is then employed to construct the trial wave function for the electron part. The effects of electron-optical phonon interaction on the binding energies are calculated as functions of the well width. In the study of the polaron effects on the impurity binding energies in a quantum well, both confined bulk optical phonon and surface optical phonon effects are taken into account. It is found that the surface phonon effect prevails over the bulk phonon effect when the well width is small. The polaron effects on lower-lying excited states are also calculated. The line strengths of transitions from the ground state to lower-lying excited states are calculated as functions of the donor position and the well width.
URI: http://dx.doi.org/10.1088/0953-8984/11/42/302
http://hdl.handle.net/11536/31026
ISSN: 0953-8984
DOI: 10.1088/0953-8984/11/42/302
期刊: JOURNAL OF PHYSICS-CONDENSED MATTER
Volume: 11
Issue: 42
起始頁: 8185
結束頁: 8196
顯示於類別:期刊論文


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