| 含杂质的介观结构中的持续电流 |
| |
| 引用本文： | 李鸿明,肖景林.含杂质的介观结构中的持续电流[J].发光学报,2007,28(4):489-492. |
| |
| 作者姓名： | 李鸿明 肖景林 |
| |
| 作者单位： | 内蒙古民族大学,物理与电子信息学院,内蒙古,通辽,028043;内蒙古民族大学,物理与电子信息学院,内蒙古,通辽,028043 |
| |
| 基金项目： | 国家自然科学基金(10347004)，内蒙古高校科研基金(NJ04059)资助项目~~ |
| |
| 摘 要： | 采用量子波导理论,研究了介观结构中杂质对透射几率和持续电流的影响。结果发现持续电流的大小不仅依赖于结构中环的尺度,而且也受到杂质的影响,杂质势既可以产生电流放大也可压制持续电流的放大。通过调节杂质的势来控制持续电流。
|
| 关 键 词： | 量子波导理论 介观结构 函数杂质 持续电流 |
| 文章编号： | 1000-7032（2007）04-0489-04 |
| 收稿时间： | 2006-10-19 |
| 修稿时间： | 2006-10-192006-12-15 |
Persistent Currents in Mesoscopic Structure with an Impurity |
| |
| LI Hong-ming,XIAO Jing-lin.Persistent Currents in Mesoscopic Structure with an Impurity[J].Chinese Journal of Luminescence,2007,28(4):489-492. |
| |
| Authors: | LI Hong-ming XIAO Jing-lin |
| |
| Institution: | College of Physics and Electronic Information, Inner Mongolia National University, Tongliao 028043, China |
| |
| Abstract: | Based on quantum waveguide theory,the effect of impurities on the transmission probability and the persistent currents in mesoscopic structure is studied.It is found that the persistent currents not only depend on the sizes of the rings but also are influenced by the impurities.Moreover,the impurity potential may help the enhancement of current magnification and also can suppress the amplitude of persistent current.The persistent currents can be controlled by adjusting the impurity potential. |
| |
| Keywords: | quantum waveguide theory mesoscopic structure the function impurity persistent currents |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《发光学报》浏览原始摘要信息 |
| 点击此处可从《发光学报》下载免费的PDF全文 |
