%0 Journal Article
%T Calculation of the ground-state energies of hydrogen-like impurity in a lens-shaped quantum dot<br>透镜型量子点中类氢杂质基态能的计算
%A Chang Jia-Feng
%A Zeng Xiang-Hu
%A Zhou Peng-Xia
%A Bi Qiao
%A <br>常加峰
%A 曾祥华
%A 周朋霞
%A 毕桥
%J 物理学报
%D 2004
%I 
%X Compared with the spherical quantum dot, the ground-state energies of hydrogen-like impurity in a lens-shaped quantum dot (GaAs/In1-xGaxAs) under vertical magnetic field have been discussed by using effective mass approximation and variational method. It is found that for the spherical quantum dot, the ground-state energy is only related with the deviation of distance of the impurity, but not with the in-plane or perpendicular deviation. For a lens-shaped quantum dot, due to the asymmetry of the bound potential of in-plane and perpendicular to the plane, the electronic ground-state energies are related not only with the deviation of distance but also with the deviation of direction.
%K lens-shaped quantum dot
%K ground-state energies
%K variational method<br>透镜型量子点，
%K 基态能，
%K 变分法
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=CE895EF33E8C24CA&yid=D0E58B75BFD8E51C&vid=8E6AB9C3EBAAE921&iid=E158A972A605785F&sid=32491EEEE0A8C927&eid=88B4027FEBE4F5FF&journal_id=1000-3290&journal_name=物理学报&referenced_num=0&reference_num=19