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

被引：197
|
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.
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收藏
页码：4497 / 4502
页数：6
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