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任意正多边形量子环自旋输运的普遍解

付邦 邓文基

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任意正多边形量子环自旋输运的普遍解

付邦, 邓文基

General solutions to spin transportation of electrons through equilateral polygon quantum rings with Rashba spin-orbit interaction

Fu Bang, Deng Wen-Ji
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  • 在有关偶数正多边形量子环对称连接特殊情形的自旋输运特性的研究基础上,进一步探讨了任意正多边形量子环的自旋输运性质.不仅解析地求解了相关电子散射问题,而且得到了 Landauer-Buttiker 电导的普遍公式,并讨论了它的圆环极限和 Aharonov-Casher 相位问题.结合数值计算,研究了正多边形量子环的Landauer-Buttiker 电导随多边形边数、引线连接方式、自旋轨道耦合强度以及电子波矢的周期变化特性和零点分布规律.
    Based on the previous work (Li P, Deng W J 2009 Acta Phys. Sin. 58 02713), the quantum transportation of electron through arbitrary equilateral polygons quantum rings with Rashba spin-orbit interaction is studied. With the typical method of quantum network and the Landauer-Büttiker formalism, we analytically solve the scattering problem of electron through equilateral polygonal quantum ring, and obtain the relevant formula for spin transportation conductance. The characteristics of the conductance varying with the wave-vector of electron, the strength of spin-orbit interaction, the number of polygon edges, and the ways of leads connecting to quantum rings are discussed. In the limit of infinite number of edges of polygon, we prove that the formula is consistent with the results obtained directly from the circular model of quantum rings.
    • 基金项目: 华南理工大学中央高校基本科研业务费(批准号:2009ZM0299)资助的课题.
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    [26]

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    [27]

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    ]Li P, Deng W J 2009 Acta Phys. Sin. 58 2713 (In Chinese)[李鹏、邓文基 2009 物理学报 58 2713][29]Bergsten T, Kobayashi T, Sekine Y, Nitta J 2006 Phys. Rev. Lett. 97 196803

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    ]Konig M, Tschetschetkin A, Hankiewicz E M, Sinova J, Hock V, Daumer V, Schfer M, Becker C R, Buhmann H, Molenkamp L W 2006 Phys. Rev. Lett. 96 076804

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    ]Grbic B, Leturcq R, Ihn T, Ensslin K, Reuter D, Wieck A D 2007 Phys. Rev. Lett. 99 176803

    [31]

    ]Zhu Z Y, Wang Y, Xia K, Xie X C, Ma Z S 2007 Phys. Rev. B 76 125311

    [32]

    ]Kalman O, Foldi P, Benedict M G, Peeters F M 2008 Phys. Rev. B 78 125306

    [33]

    ]Datta S 1997 Electronic Transport in Mesoscopic Systems (Cambridge: Cambridge University Press) p57

    [34]

    ]Aharonov Y, Casher A, Cimmino A, Opat G I 1984 Phys. Rev. Lett. 53 319

  • [1]

    [1]Winkler R 2003 Spin-orbit Coupling Effects in Two-dimensional Electron and Hole Systems (Berlin/Heidelberg:Springer-Verlag) p69

    [2]

    [2]Grundler D 2000 Phys. Rev. Lett. 84 6074

    [3]

    [3]Sato Y, Kita T, Gozu S, Yamada S 2001 J. Appl. Phys. 89 8017

    [4]

    [4]Qiu Z J, Gui Y S, Shu X Z, Dai N, Guo S L, Chu J H 2004 Acta Phys. Sin. 53 1186 (in Chinese) [仇志军、桂永胜、疏小舟、戴宁、郭少令、褚君浩 2004 物理学报 53 1186][5]Song H Z, Zhang P, Duan S Q, Zhao X G 2006 Chin. Phys. 15 3019

    [5]

    [6]Zhu B, Gui Y S, Qiu Z J, Zhou W Z, Yao W, Guo S L, Chu J H, Zhang F J 2006 Acta Phys. Sin. 55 786 (in Chinese)

    [6]

    [朱博、桂永胜、仇志军、周文政、姚炜、郭少令、褚君浩、张福甲 2006 物理学报 55 786]

    [7]

    [7]Zhou W Z, Lin T, Shang L Y, Huang Z M, Cui L J, Li D L, Gao H L, Zeng Y P, Guo S L, Gui Y S, Chu J H 2007 Acta Phys. Sin. 56 4099 (in Chinese) [周文政、林铁、商丽燕、黄志明、崔利杰、李东临、高宏玲、曾一平、郭少令、桂永胜、褚君浩 2007 物理学报 56 4099]

    [8]

    [8]Xu T N, Wu H Z, Sui C H 2008 Acta Phys. Sin. 57 7865 (in Chinese) [徐天宁、吴惠桢、隋成华 2008 物理学报 57 7865]

    [9]

    [9]Nitta J, Akazaki T, Takayanagi H, Enoki T 1997 Phys. Rev. Lett. 78 1335

    [10]

    ]Koga T, Sekine Y, Nitta J 2006 Phys. Rev. B 74 041302R

    [11]

    ]Zutic I, Fabian J, Sarma S D 2004 Rev. Mod. Phys. 76 323

    [12]

    ]Xia J B 1992 Phys. Rev. B 45 3593

    [13]

    ]Nitta J, Meijer F E, Takayanagi H 1999 Appl. Phys. Lett. 75 695

    [14]

    ]Frustaglia D, Richter K 2004 Phys. Rev. B 69 235310

    [15]

    ]Molnar B, Peeters F M, Vasilopoulos P 2004 Phys. Rev. B 69 155335

    [16]

    ]Foldi P, Molnar B, Benedict M G, Peeters F M 2005 Phys. Rev. B 71 033309

    [17]

    ]Citro R, Romeo F 2007 Phys. Rev. B 75 073306

    [18]

    ]Zhang X H, Xiong S J 2008 Chin. Phys. Lett. 25 5

    [19]

    ]Wang J M, Wang R, Liang J Q 2007 Chin. Phys. 16 2075

    [20]

    ]Dong Y K, Li Y X 2008 J. Appl. Phys. 103 113716

    [21]

    ]Du J, Li C G, Qin F 2009 Acta Phys. Sin. 58 3448 (in chinese) [杜坚、李春光、秦芳 2009 物理学报 58 3448]

    [22]

    ]Koga T, Nitta J, van Veenhuizen M J 2004 Phys. Rev. B 70 161302R

    [23]

    ]Bercioux D, Governale M, Cataudella V, Ramaglia V M 2004 Phys. Rev. Lett. 93 056802

    [24]

    ]Bercioux D, Governale M, Cataudella V, Ramaglia V M 2005 Phys. Rev. B 72 075305

    [25]

    ]Bercioux D, Frustaglia D, Governale M 2005 Phys. Rev. B 72 113310

    [26]

    ]Van Veenhuizen M J, Koga T, Nitta J 2006 Phys. Rev. B 73 235315

    [27]

    ]Ramaglia V M, Cataudella V, Filippis G D, Perroni C A 2006 Phys. Rev. B 73 155328

    [28]

    ]Li P, Deng W J 2009 Acta Phys. Sin. 58 2713 (In Chinese)[李鹏、邓文基 2009 物理学报 58 2713][29]Bergsten T, Kobayashi T, Sekine Y, Nitta J 2006 Phys. Rev. Lett. 97 196803

    [29]

    ]Konig M, Tschetschetkin A, Hankiewicz E M, Sinova J, Hock V, Daumer V, Schfer M, Becker C R, Buhmann H, Molenkamp L W 2006 Phys. Rev. Lett. 96 076804

    [30]

    ]Grbic B, Leturcq R, Ihn T, Ensslin K, Reuter D, Wieck A D 2007 Phys. Rev. Lett. 99 176803

    [31]

    ]Zhu Z Y, Wang Y, Xia K, Xie X C, Ma Z S 2007 Phys. Rev. B 76 125311

    [32]

    ]Kalman O, Foldi P, Benedict M G, Peeters F M 2008 Phys. Rev. B 78 125306

    [33]

    ]Datta S 1997 Electronic Transport in Mesoscopic Systems (Cambridge: Cambridge University Press) p57

    [34]

    ]Aharonov Y, Casher A, Cimmino A, Opat G I 1984 Phys. Rev. Lett. 53 319

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出版历程
  • 收稿日期:  2009-06-16
  • 修回日期:  2009-07-30
  • 刊出日期:  2010-02-05

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