Spin-dependent transport induced by magnetization in zigzag graphene nanoribbons coupled to one-dimensional leads

doi:10.1088/1674-1056/21/1/017305

中国物理B ›› 2012, Vol. 21 ›› Issue (1): 17305-017305.doi: 10.1088/1674-1056/21/1/017305

Spin-dependent transport induced by magnetization in zigzag graphene nanoribbons coupled to one-dimensional leads

赵华, 张小伟, 蔡托, 桑田, 刘晓春, 刘芳

Department of Physics and Electronics, Qiannan Normal College for Nationalities, Duyun 558000, China

收稿日期:2011-08-04 修回日期:2011-08-28 出版日期:2012-01-15 发布日期:2012-01-20
基金资助:
Project supported by the National Natural Science Foundation of China (Grant No. 11064010) and the Project of Qiannan Normal College for Nationalities, China (Grant No. QNSY201012).

Spin-dependent transport induced by magnetization in zigzag graphene nanoribbons coupled to one-dimensional leads

Zhao Hua(赵华)^†, Zhang Xiao-Wei(张小伟), Cai Tuo(蔡托) Sang Tian(桑田), Liu Xiao-Chun(刘晓春), and Liu Fang(刘芳)

Department of Physics and Electronics, Qiannan Normal College for Nationalities, Duyun 558000, China

Received:2011-08-04 Revised:2011-08-28 Online:2012-01-15 Published:2012-01-20
Supported by:
Project supported by the National Natural Science Foundation of China (Grant No. 11064010) and the Project of Qiannan Normal College for Nationalities, China (Grant No. QNSY201012).

摘要/Abstract

摘要： We study spin transport in a zigzag graphene nanoribbon sample with two ferromagnetic strips deposited on the two sides of the ribbon. A tight-binding Hamiltonian was adopted to describe the sample connected to two one-dimensional leads. Our theoretical study shows that the resonance peaks of conductance for the spin-up and spin-down electrons are separated for the parallel configuration of the ferromagnetic strips, while they are not separated for the case of antiparallel configuration. This means that giant magnetoresistance can be produced at particular energies by altering the configurations of the ferromagnetic strips, and the device can be designed as a spin filter.

关键词: graphene nanoribbon, giant magnetoresistance, conductance, current-voltage characteristic

Abstract: We study spin transport in a zigzag graphene nanoribbon sample with two ferromagnetic strips deposited on the two sides of the ribbon. A tight-binding Hamiltonian was adopted to describe the sample connected to two one-dimensional leads. Our theoretical study shows that the resonance peaks of conductance for the spin-up and spin-down electrons are separated for the parallel configuration of the ferromagnetic strips, while they are not separated for the case of antiparallel configuration. This means that giant magnetoresistance can be produced at particular energies by altering the configurations of the ferromagnetic strips, and the device can be designed as a spin filter.

Key words: graphene nanoribbon, giant magnetoresistance, conductance, current-voltage characteristic

中图分类号: (Electronic transport in nanoscale materials and structures)

73.63.-b

72.80.Vp (Electronic transport in graphene) 85.75.-d (Magnetoelectronics; spintronics: devices exploiting spin polarized transport or integrated magnetic fields)

赵华, 张小伟, 蔡托, 桑田, 刘晓春, 刘芳. Spin-dependent transport induced by magnetization in zigzag graphene nanoribbons coupled to one-dimensional leads[J]. 中国物理B, 2012, 21(1): 17305-017305.

Zhao Hua(赵华), Zhang Xiao-Wei(张小伟), Cai Tuo(蔡托) Sang Tian(桑田), Liu Xiao-Chun(刘晓春), and Liu Fang(刘芳) . Spin-dependent transport induced by magnetization in zigzag graphene nanoribbons coupled to one-dimensional leads[J]. Chin. Phys. B, 2012, 21(1): 17305-017305.

参考文献 17

[1]	Baibich M N, Broto J M, Fert A, Nguyen Van Dau F, Petroff F, Etienne P, Creuzet G, Friederich A and Chazelas J 1988 Phys. Rev. Lett. 61 2472
[2]	Daniel H H, Guinea F and Brataas A 2006 Phys. Rev. B 61 2472
[3]	Tombros N, Jozsa C, Popinciuc M, Jonkman H T and van Wees B 2007 Nature 448 571
[4]	Son Y W, Cohen M L and Louie S G 2006 Nature 444 347
[5]	Semenov Y G, Kim K W and Zavada J M 2007 it Appl. Phys. Lett. 91 153105
[6]	Zheng X H, Dai Z X, Wang X L and Zeng Z 2009 it Acta Phys. Sin. 58 S259 (in Chinese)
[7]	Hwang E H and Sarma S D 2009 Phys. Rev. B 80 075417
[8]	Rojas F M, Rossier J F and Palacios J J 2009 it Phys. Rev. Lett. 102 136810
[9]	Zhang Y T, Jiang H, Sun Q F and Xie X C 2010 it Phys. Rev. B 81 165404
[10]	Li Z L, Wang C K, Luo Y and Xue Q K 2004 Acta Phys. Sin. 53 1490 (in Chinese)
[11]	Zhou B H, Chen X W, Zhou B L, Ding K H and Zhou G H 2011 J. Phys.: Condens. Matter 23 135304
[12]	Li H D and Zheng Y S 2009 Phys. Lett. A 373 575
[13]	Maiti S K 2009 Solid State Commun. 149 973
[14]	Cuansing E and Wang J S 2009 Eur. Phys. J. B 69 505
[15]	Kobayashi Y, Fukui K I, Enoki T, Kusakabe K and Kaburagi Y 2005 Phys. Rev. B 71 193406
[16]	Datta S 1995 Electronic Transport in Mesoscopic Systems (Vol. 1) (Cambridge: Cambridge University Press) p. 148
[17]	Mujica V, Kemp M and Ratner M A 1994 J. Chem. Phys. 101 6849

Spin-dependent transport induced by magnetization in zigzag graphene nanoribbons coupled to one-dimensional leads

Spin-dependent transport induced by magnetization in zigzag graphene nanoribbons coupled to one-dimensional leads

PDF (PC)

赞

可视化

摘要/Abstract

引用本文

使用本文

参考文献 17

相关文章 15

Metrics

本文评价

推荐阅读 0

[1]	Wangwei Xu(许望伟), Shijie Sun(孙诗杰), Muzi Yang(杨慕紫), Zhenliang Hao(郝振亮), Lei Gao(高蕾), Jianchen Lu(卢建臣), Jiasen Zhu(朱嘉森), Jian Chen(陈建), and Jinming Cai(蔡金明). Polarization Raman spectra of graphene nanoribbons[J]. 中国物理B, 2023, 32(4): 46803-046803.
[2]	Junjie Wang(王俊杰), Fude Li(李福德), and Xuexi Yi(衣学喜). Hall conductance of a non-Hermitian two-band system with k-dependent decay rates[J]. 中国物理B, 2023, 32(2): 20305-020305.
[3]	Song Hu(胡松), C Y Zhao(赵长颖), and Xiaokun Gu(顾骁坤). Impact of thermostat on interfacial thermal conductance prediction from non-equilibrium molecular dynamics simulations[J]. 中国物理B, 2022, 31(5): 56301-056301.
[4]	Xue Zhao(赵雪) and Jin-Wu Jiang(江进武). Solid-gas interface thermal conductance for the thermal barrier coating with surface roughness: The confinement effect[J]. 中国物理B, 2022, 31(12): 126802-126802.
[5]	Yang-Yan Guo(郭仰岩), Wei-Hua Han(韩伟华), Xiao-Di Zhang(张晓迪), Jun-Dong Chen(陈俊东), and Fu-Hua Yang(杨富华). Observation of source/drain bias-controlled quantum transport spectrum in junctionless silicon nanowire transistor[J]. 中国物理B, 2022, 31(1): 17701-017701.
[6]	Wei-Jiang Gong(公卫江), Yu-Hang Xue(薛宇航), Xiao-Qi Wang(王晓琦), Lian-Lian Zhang(张莲莲), and Guang-Yu Yi(易光宇). Suppression of leakage effect of Majorana bound states in the T-shaped quantum-dot structure[J]. 中国物理B, 2021, 30(7): 77307-077307.
[7]	Huan Yang(杨欢), Yixuan Gao(高艺璇), Wenhui Niu(牛雯慧), Xiao Chang(常霄), Li Huang(黄立), Junzhi Liu(刘俊治), Yiyong Mai(麦亦勇), Xinliang Feng(冯新亮), Shixuan Du(杜世萱), and Hong-Jun Gao(高鸿钧). Fabrication of sulfur-doped cove-edged graphene nanoribbons on Au(111)[J]. 中国物理B, 2021, 30(7): 77306-077306.
[8]	Yu Fu(付裕), Rui-Min Xu(徐锐敏), Xin-Xin Yu(郁鑫鑫), Jian-Jun Zhou(周建军), Yue-Chan Kong(孔月婵), Tang-Sheng Chen(陈堂胜), Bo Yan(延波), Yan-Rong Li(李言荣), Zheng-Qiang Ma(马正强), and Yue-Hang Xu(徐跃杭). Enhanced interface properties of diamond MOSFETs with Al₂O₃ gate dielectric deposited via ALD at a high temperature[J]. 中国物理B, 2021, 30(5): 58101-058101.
[9]	Wan-Duo Ma(马婉铎), Ya-Lin Li(李亚林), Pei Gong(龚裴), Ya-Hui Jia(贾亚辉), and Xiao-Yong Fang(房晓勇). Conductance and dielectric properties of hydrogen and hydroxyl passivated SiCNWs[J]. 中国物理B, 2021, 30(10): 107801-107801.
[10]	陈波, 李滋润, 黄传甫, 张永梅. Electrostatic switch of magnetic core-shell in 0-3 type LSMO/PZT composite film[J]. 中国物理B, 2020, 29(9): 97702-097702.
[11]	张教凤, 钱正洪, 朱华辰, 白茹, 朱建国. Model of output characteristics of giant magnetoresistance (GMR) multilayer sensor[J]. 中国物理B, 2019, 28(8): 87501-087501.
[12]	葛梅, 蔡青, 张保花, 陈敦军, 胡立群, 薛俊俊, 陆海, 张荣, 郑有炓. Negative transconductance effect in p-GaN gate AlGaN/GaN HEMTs by traps in unintentionally doped GaN buffer layer[J]. 中国物理B, 2019, 28(10): 107301-107301.
[13]	郭仰岩, 韩伟华, 赵晓松, 窦亚梅, 张晓迪, 吴歆宇, 杨富华. Observation of hopping transitions for delocalized electrons by temperature-dependent conductance in siliconjunctionless nanowire transistors[J]. 中国物理B, 2019, 28(10): 107303-107303.
[14]	Fateme Nadri, Mohammad Mardaani, Hassan Rabani. Semi-analytic study on the conductance of a lengthy armchair honeycomb nanoribbon including vacancies, defects, or impurities[J]. 中国物理B, 2019, 28(1): 17202-017202.
[15]	王彩云, 鲁爽, 于晓东, 李海鹏. Alkyl group functionalization-induced phonon thermal conductivity attenuation in graphene nanoribbons[J]. 中国物理B, 2019, 28(1): 16501-016501.