Polaron lifetime and energy relaxation in semiconductor quantum dots

被引：117

作者：

Verzelen, O ^{[1
]}

Ferreira, R ^{[1
]}

Bastard, G ^{[1
]}

机构：

[1] Ecole Normale Super, Phys Mat Condensee Lab, F-75005 Paris, France

来源：

PHYSICAL REVIEW B | 2000年 / 62卷 / 08期

关键词：

D O I：

10.1103/PhysRevB.62.R4809

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We show that the anharmonicity driven instability of optical phonons leads in semiconductor quantum dots to a decay of polaron states which otherwise would be everlasting. By such a mechanism a single electron in an excited dot state can relax down to the ground state even if the electron energy difference markedly differs from the optical phonon energy.

引用

页码：R4809 / R4812

页数：4

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