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- W2257340963 abstract "摘要 通过有效质量近似和变分法，研究了垂直磁场下透镜型量子点中类氢杂质基态能量，并与球型量子点进行了比较.研究表明：对于球型量子点，基态能仅与杂质的偏离距离有关，与垂直和水平偏离无关；而对于透镜型量子点，由于水平方向和垂直方向束缚势的非对称性，电子基态能不仅与杂质的偏离距离有关，还与杂质偏离方向有关. 关键词: 透镜型量子点 / 基态能 / 变分法 Abstract 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. Keywords: lens-shaped quantum dot / ground-state energies / variational method 作者及机构信息 常加峰, 曾祥华, 周朋霞, 毕桥 1. 扬州大学物理科学与技术学院,复杂性科学中心,扬州 225002 基金项目: 国家自然科学基金（批准号：60072032）和江苏省教育厅基金(批准号：03KJB140152)资助的课题. Authors and contacts Chang Jia-Feng, Zeng Xiang-Hua, Zhou Peng-Xia, Bi Qiao 1. 扬州大学物理科学与技术学院,复杂性科学中心,扬州 225002 参考文献 施引文献" @default.
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- W2257340963 date "2004-01-01" @default.
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- W2257340963 title "Calculation of the ground-state energies of hydrogen-like impurity in a lens-shaped quantum dot" @default.
- W2257340963 doi "https://doi.org/10.7498/aps.53.978" @default.
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