[1]乔振华,王今金,卫亚东.利用参数电子泵产生自旋流[J].深圳大学学报理工版,2005,22(4):288-291.
　QIAO Zhen-hua,WANG Jin-jin,WEI Ya-dong.Spin current by parametric electron pump[J].Journal of Shenzhen University Science and Engineering,2005,22(4):288-291.
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利用参数电子泵产生自旋流()
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《深圳大学学报理工版》[ISSN:1000-2618/CN:44-1401/N]

卷:
第22卷
期数:
2005年4期
页码:
288-291
栏目:
物理
出版日期:
2005-10-30

文章信息/Info

Title:
Spin current by parametric electron pump
文章编号:
1000-2618(2005)04-0288-04
作者:
乔振华1; 2; 王今金3; 卫亚东4
1）香港大学物理系，香港
2）山西大学物理电子工程学院，太原030006
3）伦敦大学帝国理工学院，英国
4）深圳大学理学院，深圳518060
Author(s):
QIAO Zhen-hua 1; 2; WANG Jin-jin3; WEI Ya-dong4
1)Department of Physics The University of Hong Kong Hong Kong P. R. China
2)College of Physical Electronic Engineering Shanxi University Taiyuan 030006 P. R. China
3)Blackett Laboratory Imperial College London The University of LondonUK
4)College of Science Shenzhen University Shenzhen 518060 P. R. China
关键词:
自旋流; 参数泵浦; 散射矩阵理论
Keywords:
spin current; parametric pump; scattering matrix theory
分类号:
O 488
文献标志码:
A
摘要:
利用散射矩阵理论，研究在绝热近似下受磁势和电势共同调制的正常导线一量子点一正常导线组成的量子系统泵浦效应，讨论电子的泵浦电流和泵浦自旋流随费米能和泵浦强度等系统参量的变化.计算表明，利用该量子泵浦系统可以在电流很小的情况下，得到较大的自旋流.证明磁场和电场共同调制下的量子泵浦，是一种产生自旋流的可行方法.
Abstract:
Adiabatic parametric quantum pump of N-Qdot-N system was investigated. One pump signal was added by magnetic field and another was given by electric field. The pumped electric current and pumped spin current versus Fermi energy and signal amplitude were discussed. It is found that large spin current is obtained while the charge current is small enough. It is available and efficient to produce spin current by parametric pumping adjusted by electric and magnetic signals together.

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更新日期/Last Update: 2015-10-16