Photoionization and binding energy of a donor impurity in a quantum dot under an electric field: Effects of the hydrostatic pressure and temperature

被引：28

作者：

Liang, Shijun ^{[1
]}

Xie, Wenfang ^{[1
]}

Li, Xiaofeng ^{[2
]}

Shen, Huaya ^{[3
]}

机构：

[1] Guangzhou Univ, Coll Phys & Elect Engn, Dept Phys, Guangzhou 510006, Guangdong, Peoples R China

[2] Zhengzhou Univ, Minist Educ, Key Lab Mat Phys, Sch Phys & Engn, Zhengzhou 450001, Peoples R China

[3] China Inst Radiat Protect, Taiyuan 030006, Peoples R China

来源：

SUPERLATTICES AND MICROSTRUCTURES | 2011年 / 49卷 / 06期

基金：

中国国家自然科学基金;

关键词：

Quantum dot; Impurity; Hydrostatic pressure; Temperature; Photoionization cross-section; HYDROGENIC IMPURITY; CROSS-SECTION; STATES;

D O I：

10.1016/j.spmi.2011.03.013

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Using the perturbation approach, we have calculated the donor impurity related photoionization cross-section in a quantum dot under different temperature and hydrostatic pressure conditions. Our calculation have revealed the dependence of the photoionization cross-section on the confinement strength, temperature and hydrostatic pressure. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：623 / 631

页数：9

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