Spin-dependent quantum transport through an Aharonov--Bohm structure spin splitter

doi:10.1088/1674-1056/17/8/048

中国物理B ›› 2008, Vol. 17 ›› Issue (8): 3058-3061.doi: 10.1088/1674-1056/17/8/048

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

Spin-dependent quantum transport through an Aharonov--Bohm structure spin splitter

李玉现

College of Physics, Hebei Normal University, Shijiazhuang 050016, China

收稿日期:2008-01-19 修回日期:2008-01-28 出版日期:2008-08-20 发布日期:2008-08-20
基金资助:
Project supported by the National Natural Science Foundation of China (Grant No 10674040) and the Natural Science Foundation of Hebei Province, China (Grant No A2007000227).

Spin-dependent quantum transport through an Aharonov--Bohm structure spin splitter

Li Yu-Xian(李玉现)^†

College of Physics, Hebei Normal University, Shijiazhuang 050016, China

Received:2008-01-19 Revised:2008-01-28 Online:2008-08-20 Published:2008-08-20
Supported by:
Project supported by the National Natural Science Foundation of China (Grant No 10674040) and the Natural Science Foundation of Hebei Province, China (Grant No A2007000227).

摘要/Abstract

摘要： Using the tight-binding model approximation, this paper investigates theoretically spin-dependent quantum transport through an Aharonov--Bohm (AB) interferometer. An external magnetic field is applied to produce the spin-polarization and spin current. The AB interferometer, acting as a spin splitter, separates the opposite spin polarization current. By adjusting the energy and the direction of the magnetic field, large spin-polarized current can be obtained.

Abstract: Using the tight-binding model approximation, this paper investigates theoretically spin-dependent quantum transport through an Aharonov--Bohm (AB) interferometer. An external magnetic field is applied to produce the spin-polarization and spin current. The AB interferometer, acting as a spin splitter, separates the opposite spin polarization current. By adjusting the energy and the direction of the magnetic field, large spin-polarized current can be obtained.

Key words: Aharonov--Bohm interferometer, magnetic field, spin splitter

中图分类号: (Spin transport through interfaces)

72.25.Mk

73.63.Kv (Quantum dots)

李玉现. Spin-dependent quantum transport through an Aharonov--Bohm structure spin splitter[J]. 中国物理B, 2008, 17(8): 3058-3061.

Li Yu-Xian(李玉现). Spin-dependent quantum transport through an Aharonov--Bohm structure spin splitter[J]. Chin. Phys. B, 2008, 17(8): 3058-3061.

[1]	Lijun Ni(倪丽君), Wenqiang Wang(王文强), Lichuan Jin(金立川), Jiandong Ye(叶建东), Hehe Gong(巩贺贺), Xiang Zhan(战翔), Zhendong Chen(陈振东), Longlong Zhang(张龙龙), Xingze Dai(代兴泽), Yao Li(黎遥), Rong Zhang(张荣), Yi Yang(杨燚), Huaiwu Zhang(张怀武), Ronghua Liu(刘荣华), Lina Chen(陈丽娜), and Yongbing Xu(徐永兵). Temperature dependence of spin pumping in YIG/NiO_x/W multilayer[J]. 中国物理B, 2022, 31(12): 128504-128504.
[2]	Hua-Nan Li(李化南), Tong-Xin Xue(薛彤鑫), Lei Chen(陈磊), Ying-Rui Sui(隋瑛瑞), and Mao-Bin Wei(魏茂彬)^†. Influence of Dzyaloshinskii-Moriya interaction on the magnetic vortex reversal in an off-centered nanocontact geometry[J]. 中国物理B, 2022, 31(9): 97501-097501.
[3]	Ce Hu(胡策), Faguang Yan(闫法光), Yucai Li(李予才), and Kaiyou Wang(王开友). Vertical WS₂ spin valve with Ohmic property based on Fe₃GeTe₂ electrodes[J]. 中国物理B, 2021, 30(9): 97505-097505.
[4]	李化南, 笵紫薇, 李佳欣, 胡月, 刘惠莲. Magnetic vortex gyration mediated by point-contact position[J]. 中国物理B, 2019, 28(10): 107503-107503.
[5]	郝润润, 臧如雪, 周铁, 康仕寿, 颜世申, 刘国磊, 韩广兵, 于淑云, 梅良模. Magnetization-direction-dependent inverse spin Hall effect observed in IrMn/NiFe/Cu/YIG multilayer structure[J]. 中国物理B, 2019, 28(3): 37202-037202.
[6]	朱科建, 林伟坚, 苏仰涛, 石海滨, 孟洋, 赵宏武. Inverse spin Hall effect in ITO/YIG exited by spin pumping and spin Seebeck experiments[J]. 中国物理B, 2019, 28(1): 17201-017201.
[7]	王金凤, 庄照通, 刘帅帅, 高迁迁. Effects of the band-filling and Fe/Mo disorder on physical properties of Ca₂FeMoO₆[J]. 中国物理B, 2018, 27(12): 127201-127201.
[8]	张林. Electrical controllable spin valves in a zigzag silicene nanoribbon ferromagnetic junction[J]. 中国物理B, 2018, 27(6): 67203-067203.
[9]	郝润润, 钟海, 康韵, 田雨霏, 颜世申, 刘国磊, 韩广兵, 于淑云, 梅良模, 康仕寿. Spin-independent transparency of pure spin current at normal/ferromagnetic metal interface[J]. 中国物理B, 2018, 27(3): 37202-037202.
[10]	郭飞, 吴雅苹, 吴志明, 陈婷, 李恒, 张纯淼, 付明明, 卢奕宏, 康俊勇. Strong anti-strain capacity of CoFeB/MgO interface on electronic structure and state coupling[J]. 中国物理B, 2018, 27(1): 17502-017502.
[11]	康韵, 钟海, 郝润润, 胡树军, 康仕寿, 刘国磊, 张引, 王向荣, 颜世申, 吴勇, 于淑云, 韩广兵, 姜勇, 梅良模. The origin of spin current in YIG/nonmagnetic metal multilayers at ferromagnetic resonance[J]. 中国物理B, 2017, 26(4): 47202-047202.
[12]	栾桂苹, 张沛然, 焦娜, 孙立忠. Tunneling magnetoresistance based on a Cr/graphene/Cr magnetotunnel junction[J]. 中国物理B, 2015, 24(11): 117201-117201.
[13]	张林. Adiabatic quantum pump in a zigzag graphene nanoribbon junction[J]. 中国物理B, 2015, 24(11): 117202-117202.
[14]	史豪晟, Vahram L. Grigoryan. Spin transport in a Zigzag normal/ferromagnetic graphene junction[J]. 中国物理B, 2015, 24(5): 57202-057202.
[15]	史豪晟, Vahram L. Grigoryan. Spin transport in Zigzag normal/ferromagnetic graphene junction[J]. , 0, (): 38504-038504.

Spin-dependent quantum transport through an Aharonov--Bohm structure spin splitter

Spin-dependent quantum transport through an Aharonov--Bohm structure spin splitter

PDF (PC)

赞

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 15

Metrics

本文评价

推荐阅读 0