SPECTRUM AND BINDING OF AN OFF-CENTER DONOR IN A SPHERICAL QUANTUM-DOT

被引：196

作者：

ZHU, JL ^{[1
]}

CHEN, X ^{[1
]}

机构：

[1] TSING HUA UNIV,DEPT PHYS,BEIJING 100084,PEOPLES R CHINA

来源：

PHYSICAL REVIEW B | 1994年 / 50卷 / 07期

关键词：

D O I：

10.1103/PhysRevB.50.4497

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The energy levels and binding energies of an off-center donor in a GaAs-Ga1-xAlxAs spherical quantum dot are calculated by a linear variational method. The results clearly show the quantum size effect. The location effects of a donor ion on splitting, level ordering, and binding of the donor states are studied. It is found that the alteration of the position of a single Coulomb center can largely change the single-electron spectrum in a quantum dot with a larger radius.

引用

页码：4497 / 4502

页数：6

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