GAMMA-TO-X(Z) ELECTRON-TRANSFER TIMES IN TYPE-II SUPERLATTICES DUE TO EMISSION OF CONFINED PHONONS

被引：17

作者：

DEPAULA, AM

WEBER, G

机构：

[1] Instituto de Física, Universidade Estadual de Campinas, 13083-970 Campinas SP

来源：

APPLIED PHYSICS LETTERS | 1994年 / 65卷 / 10期

关键词：

D O I：

10.1063/1.112095

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We calculate the GAMMA --> X(z) electron transfer times due to the emission of confined longitudinal optical phonons in type-II GaAs-AlAs and AlGaAs-AlAs superlattices. A dielectric continuum model is employed to describe the electron-confined-phonon interaction and the electron envelope wave functions are obtained from a Kronig-Penney model. The calculated transfer times compare within order of magnitude, or better, with available experimental results and we obtain a good qualitative description of the transfer time dependence on the layer thicknesses.

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页码：1281 / 1283

页数：3

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