Spin pumping through magnetic impurity effect

doi:10.1088/1674-1056/24/8/087202

中国物理B ›› 2015, Vol. 24 ›› Issue (8): 87202-087202.doi: 10.1088/1674-1056/24/8/087202

• CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES • 上一篇下一篇

Spin pumping through magnetic impurity effect

邓伟胤^a, 盛利^{a b}, 邢定钰^{a b}

a National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nanjing 210093, China;
b Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China

收稿日期:2015-04-10 修回日期:2015-05-08 出版日期:2015-08-05 发布日期:2015-08-05
基金资助:
Project supported by the State Key Program for Basic Research of China (Grant Nos. 2015CB921202, 2014CB921103, 2011CB922103, and 2010CB923400), the National Natural Science Foundation of China (Grant Nos. 11225420, 11174125, and 91021003), and the Priority Academic Program Development of Higher Education Institutions of Jiangsu Province, China.

Spin pumping through magnetic impurity effect

Deng Wei-Yin (邓伟胤)^a, Sheng Li (盛利)^{a b}, Xing Ding-Yu (邢定钰)^{a b}

a National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nanjing 210093, China;
b Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China

Received:2015-04-10 Revised:2015-05-08 Online:2015-08-05 Published:2015-08-05
Contact: Sheng Li E-mail:shengli@nju.edu.cn
Supported by:
Project supported by the State Key Program for Basic Research of China (Grant Nos. 2015CB921202, 2014CB921103, 2011CB922103, and 2010CB923400), the National Natural Science Foundation of China (Grant Nos. 11225420, 11174125, and 91021003), and the Priority Academic Program Development of Higher Education Institutions of Jiangsu Province, China.

摘要/Abstract

摘要：

We propose a simple adiabatic quantum spin pump to generate pure spin current. The spin pump is driven by an ac gate voltage and a time-dependent magnetic impurity potential. It is found that the total pumped spin per cycle exhibits oscillations, whose magnitude decays exponentially with changing strength of the impurity potential. The proposed method may be useful for spintronic applications.

关键词: pumping, pure spin current, magnetic impurity

Abstract:

Key words: pumping, pure spin current, magnetic impurity

中图分类号: (Current-driven spin pumping)

72.25.Pn

73.23.-b (Electronic transport in mesoscopic systems) 75.75.-c (Magnetic properties of nanostructures)

邓伟胤, 盛利, 邢定钰. Spin pumping through magnetic impurity effect[J]. 中国物理B, 2015, 24(8): 87202-087202.

Deng Wei-Yin (邓伟胤), Sheng Li (盛利), Xing Ding-Yu (邢定钰). Spin pumping through magnetic impurity effect[J]. Chin. Phys. B, 2015, 24(8): 87202-087202.

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Spin pumping through magnetic impurity effect

Spin pumping through magnetic impurity effect

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