The Combined Effect of a Magnetic Field and a Charged Impurity on a 2Electron Quantum Dot

LI Xiaozhu; LIU Yimin; HUANG Gangming

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The Combined Effect of a Magnetic Field and a Charged Impurity on a 2Electron Quantum Dot

更新时间：2023-12-11

- The Combined Effect of a Magnetic Field and a Charged Impurity on a 2Electron Quantum Dot
- Acta Scientiarum Naturalium Universitatis SunYatseni Vol. 49, Issue 3, Pages: 38-41(2010)
- 作者机构：
  
  1. 韶关学院物理系,广东,韶关,512005
  2. 
  3. 中山大学理工学院,广东,广州,510275
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2010，
  
  Published Online：25 May 2010，
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LI Xiaozhu, LIU Yimin, HUANG Gangming. The Combined Effect of a Magnetic Field and a Charged Impurity on a 2Electron Quantum Dot. [J]. Acta Scientiarum Naturalium Universitatis SunYatseni 49(3):38-41(2010)
DOI：

LI Xiaozhu, LIU Yimin, HUANG Gangming. The Combined Effect of a Magnetic Field and a Charged Impurity on a 2Electron Quantum Dot. [J]. Acta Scientiarum Naturalium Universitatis SunYatseni 49(3):38-41(2010) DOI：

摘要

研究了在磁场B中受带电杂质影响的2维2电子量子点的特性。带电杂质被固定在z轴上且与量子点所在的平面的距离为d。用直接对角化方法获得了2电子量子点的低态能谱，计算了其基态角动量L0和自旋S0随B、d的演化

归纳结果于(L0

S0)相图中。 (L0

S0)图表明：基态L0和S0跃迁以特殊的方式匹配。

Abstract

The property of a 2dimensional 2electron quantum dot (QD) subjected to an external magnetic field B and affected by a charged impurity is studied. The impurity is located at the zaxis by a distance d from the plane of the dot. The energy spectra of lowlying state of the QD are obtained by the exact diagonalization approach. The evolution of the angular momentum L0 and the spin S0 of the ground state in accord with B and d has been calculated

the results are summarized and plotted in a (L0

S0) diagram. The (L0

S0) diagram indicates that the transitions of L0 and S0 are matched in peculiar way.

关键词

量子点磁场杂质基态

Keywords

quantum dotmagnetic fieldimpurityground state

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Related Author

Wang Zhengmao

Zhou Yichang

HE Chunshan

HUANG Gangming

Related Institution

Department of Physics, Zhongshan University

School of Physics, Sun YatSen University

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