Spin-polarization-dependent transport in a quantum dot array coupled with an Aharonov–Bohm ring

doi:10.1088/1674-1056/19/12/127202

中国物理B ›› 2010, Vol. 19 ›› Issue (12): 127202-127202.doi: 10.1088/1674-1056/19/12/127202

Spin-polarization-dependent transport in a quantum dot array coupled with an Aharonov–Bohm ring

王瑞¹, 孔令民¹, 周运清¹, 张存喜¹, 邢志勇²

(1)Department of Physics, Zhejiang Ocean University, Zhoushan 316000, China; (2)Xiamen Ocean Vocational College, Xiamen 361012, China

收稿日期:2010-03-12 修回日期:2010-08-03 出版日期:2010-12-15 发布日期:2010-12-15
基金资助:
Project supported by the National Natural Science Foundation of China (Grant Nos. 10947163 and 10947164).

Spin-polarization-dependent transport in a quantum dot array coupled with an Aharonov–Bohm ring

Wang Rui(王瑞)^a)^†, Kong Ling-Min(孔令民)^a), Zhou Yun-Qing(周运清)^a), Zhang Cun-Xi(张存喜)^a), and Xing Zhi-Yong(邢志勇)^b)

^a Department of Physics, Zhejiang Ocean University, Zhoushan 316000, China; ^b Xiamen Ocean Vocational College, Xiamen 361012, China

Received:2010-03-12 Revised:2010-08-03 Online:2010-12-15 Published:2010-12-15
Supported by:
Project supported by the National Natural Science Foundation of China (Grant Nos. 10947163 and 10947164).

摘要/Abstract

摘要： In this paper the quantum transport in a dot-array coupled with an Aharonov–Bohm (AB) ring is investigated via single-band tight-binding Hamiltonian. It is shown that the output spin current is a periodic function of the magnetic flux in the quantum unit Φ₀. The resonance positions of the total transmission probability do not depend on the size of the AB ring but the electronic spectrum. Moreover, the persistent currents in the AB ring is also spin-polarization dependent and different from the isolated AB ring where the persistent current is independent of spin polarization.

Abstract: In this paper the quantum transport in a dot-array coupled with an Aharonov–Bohm (AB) ring is investigated via single-band tight-binding Hamiltonian. It is shown that the output spin current is a periodic function of the magnetic flux in the quantum unit $\varPhi_0$. The resonance positions of the total transmission probability do not depend on the size of the AB ring but the electronic spectrum. Moreover, the persistent currents in the AB ring is also spin-polarization dependent and different from the isolated AB ring where the persistent current is independent of spin polarization.

Key words: spin-polarization, transmission, AB ring, current

中图分类号: (Spin polarized transport)

72.25.-b

73.21.La (Quantum dots) 73.23.Ra (Persistent currents)

王瑞, 孔令民, 周运清, 张存喜, 邢志勇. Spin-polarization-dependent transport in a quantum dot array coupled with an Aharonov–Bohm ring[J]. 中国物理B, 2010, 19(12): 127202-127202.

Wang Rui(王瑞), Kong Ling-Min(孔令民), Zhou Yun-Qing(周运清), Zhang Cun-Xi(张存喜), and Xing Zhi-Yong(邢志勇). Spin-polarization-dependent transport in a quantum dot array coupled with an Aharonov–Bohm ring[J]. Chin. Phys. B, 2010, 19(12): 127202-127202.

参考文献 35

[1]	Chandrasekhar V, Webb R A, Brady M J, Ketchen M B, Gallagher W J and Kleinsasser A 1991 Phys. Rev. Lett. 67 3578
[2]	Mailly D, Chapelier C and Benoit A 1993 Phys. Rev. Lett. 70 2020
[3]	Keyser U F, Fühner C, Borck S and Hauh R J 2002 Semicond. Sci. Technol. 17 L22
[4]	Orellana P A, Dominguez-Adame F, Gomez I and Ladron de Guevara M L 2003 Phys. Rev. B 67 085321
[5]	Fuhrer A, Lüscher S, Ihn T, Heinzel T, Ensslin K, Wegscheiner W and Bichler M 2001 Nature (London) 413 385
[6]	Yanson A I, Rubio-Bpllinger G, van den Brom H E, Agra "hit N and van Ruitenbeek J M 1998 Nature (London) 395 780
[7]	Waugh F R, Berry M J, Crouch C H, Livermore C, Mar D J, Westervelt R M, Campman K L and Gossard A C 1996 Phys. Rev. B 53 1413
[8]	Midori Kawamura, Neelima Paul, Vasily Cherepanov and Bert Voigtlanänder 2003 Phys. Rev. Lett. 91 096102
[9]	Wang J M, Wang R, Zhang Y P and Liang J Q 2007 Chin. Phys. 16 2069
[10]	Wang J M, Wang R and Liang J Q 2007 Chin. Phys. 16 2075
[11]	Gao Y F, Zhang Y P and Liang J Q 2005 Chin. Phys. 14 196
[12]	Kirczenow G 1989 Phys. Rev. B 39 10452
[13]	Ulloa S E, Castavno E and Kirczenow G 1990 Phys. Rev. B 41 12350
[14]	Brum J A 1991 Phys. Rev. B 43 12082
[15]	Tamura H and Ando T 1991 Phys. Rev. B 44 1792
[16]	Li Z J 2005 Chin. Phys. 14 2100
[17]	Thouless D J and Kirkpatrick S 1981 J. Phys. C 14 235
[18]	Lee P A and Fisher D S 1981 Phys. Rev. Lett. 47 882
[19]	Schweizer L, Kramer B and Mackinnon A 1984 J. Phys. C 17 4111
[20]	Schweizer L, Kramer B and Mackinnon A 1985 Z. Phys. B: Conden. Matter 59 379
[21]	Mackinnon A 1985 Z. Phys. B: Conden. Matter 59 385
[22]	Ando T 1991 Phys. Rev. B 44 8017
[23]	Wang B G, Wang J and Guo H 2003 Phys. Rev. B 67 92408
[24]	Sun Q F, Wang J and Guo H 2005 Phys. Rev. B 71 165310
[25]	Xu H Q 2002 Phys. Rev. B 66 165305
[26]	Büttiker M 1985 Phys. Rev. B 32 1846
[27]	Jayanavar A M and Singha Deo P 1994 Phys. Rev. B 49 13685
[28]	Shi J R and Gu B Y 1997 Phys. Rev. B 55 4703
[29]	D'Amato Jorge L, Pastawski Horario M and Weisz Juan F 1989 Phys. Rev. B 39 3554
[30]	Liu Y Y and Hui P M 1998 Phys. Rev. B 57 12994
[31]	Cheung Ho-Fai and Riedel Eberhars K 1989 Phys. Rev. B 40 9498
[32]	Chen Y, Xiong S J and Nagelou S R 1997 Phys. Rev. B 56 4778
[33]	Carini J P, Muttalib K A and Nagel S R 1984 Phys. Rev. Lett. 53 102
[34]	Orellana Pedro A, Lara G A and Anda Enrique V 2002 Phys. Rev. B 65 193307
[35]	Liang J Q, Peng F and Ding X X 1995 Phys. Lett. A 201 369

Spin-polarization-dependent transport in a quantum dot array coupled with an Aharonov–Bohm ring

Spin-polarization-dependent transport in a quantum dot array coupled with an Aharonov–Bohm ring

PDF (PC)

赞

可视化

摘要/Abstract

引用本文

使用本文

参考文献 35

相关文章 15

Metrics

本文评价

推荐阅读 0

[1]	Mei-Rong Liu(刘美荣), Zheng-Fang Liu(刘正方), Ruo-Long Zhang(张若龙), Xian-Bo Xiao(肖贤波), and Qing-Ping Wu(伍清萍). Spin- and valley-polarized Goos-Hänchen-like shift in ferromagnetic mass graphene junction with circularly polarized light[J]. 中国物理B, 2023, 32(3): 37301-037301.
[2]	Ningjing Yang(杨柠境), Hai Yang(杨海), and Guojun Jin(金国钧). Interface-induced topological phase and doping-modulated bandgap of two-dimensioanl graphene-like networks[J]. 中国物理B, 2023, 32(1): 17201-017201.
[3]	Yandong Guo(郭艳东), Xue Zhao(赵雪), Hongru Zhao(赵鸿儒), Li Yang(杨丽), Liyan Lin(林丽艳), Yue Jiang(姜悦), Dan Ma(马丹), Yuting Chen(陈雨婷), and Xiaohong Yan(颜晓红). Conformational change-modulated spin transport at single-molecule level in carbon systems[J]. 中国物理B, 2022, 31(12): 127201-127201.
[4]	Xin-Ke Liu(刘鑫柯), Xin-Yang Li(李欣阳), Miao-Juan Ren(任妙娟),Pei-Ji Wang(王培吉), and Chang-Wen Zhang(张昌文). High-temperature nodal ring semimetal in two-dimensional honeycomb-kagome Mn₂N₃ lattice[J]. 中国物理B, 2022, 31(12): 127203-127203.
[5]	Zhi Yang(羊志), Feng Sun(孙峰), Deng-Hui Chen(陈登辉), Zi-Qun Wang(王子群), Chuan-Kui Wang(王传奎), Zong-Liang Li(李宗良), and Shuai Qiu(邱帅). Current spin polarization of a platform molecule with compression effect[J]. 中国物理B, 2022, 31(7): 77202-077202.
[6]	Yi Guo(郭逸), Peng Zhao(赵朋), and Gang Chen(陈刚). Theoretical design of thermal spin molecular logic gates by using a combinational molecular junction[J]. 中国物理B, 2022, 31(4): 47202-047202.
[7]	Li Wang(王力), Yangtao Su(苏仰涛), Yang Meng(孟洋), Haibin Shi(石海滨), Xinyu Cao(曹昕宇), and Hongwu Zhao(赵宏武). Spin current transmission in Co_1-xTb_x films[J]. 中国物理B, 2022, 31(2): 27504-027504.
[8]	Sai-Yan Chen(陈赛艳), Mao-Wang Lu(卢卯旺), and Xue-Li Cao(曹雪丽). Separating spins by dwell time of electrons across parallel double δ-magnetic-barrier nanostructure applied by bias[J]. 中国物理B, 2022, 31(1): 17201-017201.
[9]	Jing-Fen Zhao(赵敬芬), Hui Wang(王辉), Zai-Fa Yang(杨在发), Hui Gao(高慧), Hong-Xia Bu(歩红霞), and Xiao-Juan Yuan(袁晓娟). Spin transport properties for B-doped zigzag silicene nanoribbons with different edge hydrogenations[J]. 中国物理B, 2022, 31(1): 17302-017302.
[10]	Peng-Bin Niu(牛鹏斌), Bo-Xiang Cui(崔博翔), and Hong-Gang Luo(罗洪刚). Negative tunnel magnetoresistance in a quantum dot induced by interplay of a Majorana fermion and thermal-driven ferromagnetic leads[J]. 中国物理B, 2021, 30(9): 97401-097401.
[11]	王子群, 唐菲, 董密密, 王明郎, 胡贵超, 冷建材, 王传奎, 张广平. Theoretical design of single-molecule NOR and XNOR logic gates by using transition metal dibenzotetraaza[14]annulenes[J]. 中国物理B, 2020, 29(6): 67202-067202.
[12]	彭许凯, 张正中. Electrically tunable spin diode effect in a tunneling junction of quantum dot[J]. 中国物理B, 2019, 28(12): 127202-127202.
[13]	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.
[14]	谷现荣, 郭立丹, 孙向南. Recent spinterfacial studies targeted to spin manipulation in molecular spintronic devices[J]. 中国物理B, 2018, 27(10): 107202-107202.
[15]	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.