...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Physica Scripta: An International Journal for Experimental and Theoretical Physics >Effect of confining potential on the exciton stability at various locations in a parabolic and square quantum ring
【24h】

Effect of confining potential on the exciton stability at various locations in a parabolic and square quantum ring

机译：抛物线和方料环各个地方激发器稳定性的限制潜力

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

The effect of location of the constituent carriers in different confining potentials on the binding energy and diamagnetic susceptibility of an exciton in a GaAs/Al0.3Ga0.7As Quantum Ring (QR) has been investigated by variational method. The inter-particle separation of electron and hole in both square and parabolic quantum rings along the radial and axial directions and hence the spatial extension of the excitonic wavefunction is studied. Unlike other low dimensional structures, QR hardly allow barrier penetration of the carrier because of their topology and the same is investigated by considering the particles at the edge of the ring for the two different confining potentials. Height of the ring has been tuned to understand the behavior of the excitonic states along the axial direction. The change in diamagnetic susceptibility for two different confining potentials has also been calculated for various ring widths. The square and parabolic potential shows a major difference in the interface which can be witnessed from the change in binding energy and susceptibility of the exciton for various locations of electron and hole.
机译：通过变分法研究了在GaAs / Al0.3Ga0.7as量子环（QR）中的不同限制电位对GaAs / Al0.3Ga0.7as量子环（QR）的不同限制势的不同限制势的影响。研究了沿径向和轴向方向的正方形和抛物型量子环中的电子和孔的互粒子分离，因此研究了激发器波函数的空间延伸。与其他低尺寸结构不同，由于它们的拓扑结构，QR几乎没有允许载体的阻挡渗透，并且通过将颗粒考虑在环的边缘处的两个不同的限制势的颗粒来研究。已经调整了环的高度以了解沿轴向的激子状态的行为。对于各种环宽度，还计算了两种不同限制势的抗磁敏感性的变化。方形和抛物型电位显示了界面的主要差异，可以从激子的结合能量和易感性的变化中获取电子和孔的各个位置。

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