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磁场和带电杂质对2电子量子点的综合效应
  • ISSN号：0529-6579
  • 期刊名称：《中山大学学报：自然科学版》
  • 时间：0
  • 分类：O488[理学—固体物理;理学—物理]
  • 作者机构：[1]韶关学院物理系,广东韶关512005, [2]中山大学理工学院,广东广州510275
  • 相关基金：国家自然科学基金资助项目（10874122 10747146 10847167）; 广东省自然科学基金资助项目（06300345 7007806 8451027501001445）; 波谱与原子分子物理国家重点实验室基金资助项目（T152615）
作者： 李小珠[1], 刘益民[1], 黄钢明[2]
关键词： 量子点, 磁场, 杂质, 基态, quantum dot, magnetic field, impurity, ground state
中文摘要：

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L0和自旋S0随B、d的演化,归纳结果于（L0,S0）相图中。（L0,S0）图表明：基态L0和S0跃迁以特殊的方式匹配。

英文摘要：

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 L0 and the spin S0 of the ground state in accord with B and d has been calculated,the results are summarized and plotted in a（L0,S0） diagram.The（L0,S0） diagram indicates that the transitions of L0 and S0 are matched in peculiar way.

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期刊信息
  • 《中山大学学报：自然科学版》
  • 北大核心期刊（2011版）
  • 主管单位:国家教育部
  • 主办单位:中山大学
  • 主编：王建华
  • 地址：广州市新港西路135号
  • 邮编：510275
  • 邮箱：xuebaozr@mail.sysn.edu.cn
  • 电话：020-84111990
  • 国际标准刊号：ISSN：0529-6579
  • 国内统一刊号：ISSN：44-1241/N
  • 邮发代号:46-15
  • 获奖情况:
  • 全国优秀高等学校自然科学学报及教育部优秀科技期...,广东省优秀科学技术期刊一等奖,《中文核心期刊要目总览》综合性科技类核心期刊,中国期刊方阵“双效”期刊
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  • 被引量:18509