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In0.53Ga0.47As/In0.52Al0.48As量子阱二维电子气中的零场自旋分裂与塞曼分裂
  • ISSN号：1001-9014
  • 期刊名称：《红外与毫米波学报》
  • 时间：0
  • 分类：O471.5[理学—半导体物理;理学—物理]
  • 作者机构：[1]中国科学院上海技术物理研究所,红外物理国家重点实验室,上海200083, [2]中国科学院上海微系统研究所,信息功能材料国家重点实验室,上海200050
  • 相关基金：国家重点基础研究发展计划（973计划）（2013CB922301,2012CB619204）;国家自然科学基金（60976093,10934007,11174306）
作者： 刘新智[1], 徐勇刚[1], 俞国林[1], 林铁[1], 郭少令[1], 褚君浩[1], 张永刚[2]
关键词： INGAAS, InAlAs量子阱, 零场自旋分裂, 塞曼分裂, 有效g因子, InGaAs/InA1As quantum well, zero-field spin splitting, Zeeman splitting, effective g-factor
中文摘要：

利用变角度磁输运方法研究了高迁移率、高浓度、宽度为20nm、单边6掺杂的In0.53Ga0.47As/In0.52Al0.48As量子阱，根据量子阱平面与磁场不同夹角时SdH振荡的拍频节点移动，提取了其自旋分裂能△0和有效g因子｜g＊｜，发现△0随浓度增加而增大，｜g＊｜随浓度增加而减小．进一步的分析和计算表明，｜g＊｜减小是由量子阱能带结构的非抛物性作用引起的．

英文摘要：

The zero-field spin splitting and Zeeman splitting in the In0.53Ga0.47As/In0.52Al0.48As quantum well （QW） were extracted by a Shubnikov-de Haas oscillations （SdH） beating pattern analysis under different tilt angles between QW plane and external magnetic field. It is found that the zero-field spin splitting △0 increases with increasing carrier concen- tration while the effective g-factor ｜g＊｜ decreases. The further calculation indicated that the decrease of ｜g＊｜ with con- centration is ascribed to the nonparabolic effect of the band structure.

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期刊信息
  • 《红外与毫米波学报》
  • 中国科技核心期刊
  • 主管单位:中国科学院
  • 主办单位:中国科学院上海技术物理研究所 中国光学学会
  • 主编：褚君浩
  • 地址：上海市玉田路500号
  • 邮编：200083
  • 邮箱：jimw@mail.sitp.ac.cn
  • 电话：021-25051553
  • 国际标准刊号：ISSN：1001-9014
  • 国内统一刊号：ISSN：31-1577/TN
  • 邮发代号:4-335
  • 获奖情况:
  • 1992、1996年获全国优秀学术期刊一等奖,1999年首届国家期刊奖
  • 国内外数据库收录:
  • 俄罗斯文摘杂志,美国化学文摘（网络版）,荷兰文摘与引文数据库,美国工程索引,美国剑桥科学文摘,美国科学引文索引（扩展库）,日本日本科学技术振兴机构数据库,中国中国科技核心期刊,中国北大核心期刊（2004版）,中国北大核心期刊（2008版）,中国北大核心期刊（2011版）,中国北大核心期刊（2014版）,瑞典开放获取期刊指南,中国北大核心期刊（2000版）
  • 被引量:8778