Binding Energy of D^- and D^0 Centers Confined by Spherical Quantum Dots  

作　　者：BAO Yuan-Peng XIE Wen-Fang 

机构地区：[1]School of Physics and Electronic Engineering, Guangzhou University, Guangzhou 510006, China

出　　处：《Communications in Theoretical Physics》2008年第12期1449-1452,共4页理论物理通讯（英文版）

基　　金：The project supported by National Natural Science Foundation of China under Grant No. 10775053

摘　　要：We study a negative donor center, a neutral donor in a spherical Gaussian potential quantum dot by using the matrix diagonalization of Hamiltonian within the effective-mass approximation. We calculate the energy E（ D^-） as functions of Gaussian potential size and depth, the same calculations as performed with the parabolic approximation. The dependence of the ground state of the neutral shallow donor and the negatively charged donor on the dot size and the potential depth is investigated.

关 键 词：donor center quantum dots Gaussian potential 

分 类 号：O413[理学—理论物理]