• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Nanotechnology >Experimental observation of the negatively charged exciton states in high magnetic fields
【24h】

Experimental observation of the negatively charged exciton states in high magnetic fields

机译：强磁场中带负电的激子态的实验观察

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

We have studied the high magnetic field (<=50 T) dependence of the negatively charged exciton properties in GaAs/Al_xGa?_(1-x)As _x=0.033) quantum wells using photoluminescence (PL) spectroscopy. Observation of all the optically allowed transitions of the charged exciton allows us to experimentally verify a revised energy-level diagram of spin-split singlet and triplet states. The PL data obtained on all samples are completely consistent with this diagram, leading us to conclude that the negatively charged exciton is a model three-particle system. The binding energy of the negatively charged exciton is measured between 23 and 50 T, and found to be constant for both singlet and triplet states. Our results are compared with recent theory.
机译：我们已经使用光致发光（PL）光谱研究了GaAs /Al_xGaγ_（1-x）As _x = 0.033）量子阱中带负电荷的激子性质的高磁场（<= 50 T）依赖性。观察带电激子的所有光学允许的跃迁，使我们能够通过实验验证自旋分裂单重态和三重态的修正能级图。在所有样品上获得的PL数据与该图完全一致，这使我们得出结论，带负电的激子是模型三粒子系统。带负电荷的激子的结合能在23至50 T之间测量，发现对于单重态和三重态均恒定。我们的结果与最新理论进行了比较。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号