Photoionization and electrostatic multipoles properties of spherical core/shell/shell quantum nanolayer with off-center impurity

被引：9
|
作者：
Baghdasaryan, D. A. [1 ]
Kazaryan, E. M. [1 ]
Sarkisyan, H. A. [1 ,2 ,3 ]
机构：
[1] Russian Armenian Univ, H Emin 123, Yerevan 0051, Armenia
[2] Yerevan State Univ, A Manoogian 1, Yerevan 0025, Armenia
[3] Peter Great St Petersburg Polytech Univ, St Petersburg, Russia
来源：
SUPERLATTICES AND MICROSTRUCTURES | 2017年 / 104卷
关键词：
Core/shell/shell; Spherical nanolayer; Photoionization cross-section; Electrostatic multipoles; CROSS-SECTION; DONOR IMPURITY; HYDROSTATIC-PRESSURE; BINDING-ENERGY; STATES; DOTS;
D O I：
10.1016/j.spmi.2017.02.017
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
The electronic, optical and electrostatic properties of the spherical core/shell/shell quantum nanolayer with an off-centered impurity have been studied. Spherical nanolayers of both "small" and "large" radii have been considered in the framework of perturbation theory and the variational method. Photoionization cross-section that corresponds to the electron transitions from the impurity ground state to the size-quantized levels have been studied. The dependence of the photoionization cross section on the photon energy, impurity position and the geometrical parameters of the spherical nanolayer have been obtained. The electrostatic multipoles of the considered system have been investigated. (C) 2017 Elsevier Ltd. All rights reserved.
引用
收藏
页码：69 / 77
页数：9
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