SCREENING OF THE ELECTRON-PHONON INTERACTION IN QUASI-ONE-DIMENSIONAL SEMICONDUCTOR STRUCTURES

被引：42

作者：

HAI, GQ ^{[1
]}

PEETERS, FM ^{[1
]}

DEVREESE, JT ^{[1
]}

WENDLER, L ^{[1
]}

机构：

[1] UNIV HALLE,FACHBEREICH PHYS,D-06099 HALLE,GERMANY

来源：

PHYSICAL REVIEW B | 1993年 / 48卷 / 16期

关键词：

D O I：

10.1103/PhysRevB.48.12016

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The screening of the electron-phonon interaction due to a quasi-one-dimensional (Q1D) electron gas is investigated. The contribution of the electron-phonon interaction to the ground-state energy of the Q1D polaron gas in different semiconductor quantum-well-wire structures is calculated within the Hartree-Fock and the random-phase approximation. The influences of the width of the quantum-well wire and the electron density on the ground-state energy of the polaron gas are studied. We found that the screening due to the electron gas reduces the effective electron-phonon coupling in a Q1D system appreciably and the contribution of the electron-phonon interaction to the ground-state energy of the polaron gas decreases with increasing electron density.

引用

页码：12016 / 12022

页数：7

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