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基于自洽输运理论的介观体系动态电导的研究

全军 T. C. Au Yeung 邵乐喜

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基于自洽输运理论的介观体系动态电导的研究

全军, T. C. Au Yeung, 邵乐喜

Investigation on the dynamic conductance of mesoscopic system based on the self-consistent transport theory

Quan Jun, T. C. Au Yeung, Shao Le-Xi
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  • 基于介观体系电子动态输运的自洽理论,讨论了介观结构的动态电导.作为该理论的应用,采用一介观相干平行板电容器模型来进行研究. 结果表明:体系的动态电导与外场频率和体系费米能有关,为一复数且有有限虚部. 当外场频率较小时,动态电导随费米能的变化所呈现的特性和直流情形非常相似,但是随着外场频率的增加,两者差异就变得非常明显,体系动态电导随外场频率的变化呈现一些峰值结构. 在给定体系费米能时,动态电导随着外场频率的变化而产生振荡,并且出现了负的电导虚部,电导虚部的正负表明了体系的电容特性和电感特性.
    According to the self-consistent electronic dynamic transport theory of mesoscopic system, we present the dynamic conductance of mesoscopic structure. As an application of this theory, we employ a coherent mesoscopic parallel-plate capacitor model in the present study. The results show that the dynamic conductance of system depends on the frequency of external field and Fermi energy of system, and is a complex with a finite imaginary part. For a smaller frequency, the conductance shows a similar feature to dc case, but with the increase of the frequency of external fields, substantial deviations between dc case and ac case are observed, the dynamic conductance of system presents a peak structure with Fermi energy varying. For a given Fermi energy, the dynamic conductance is oscillatory with frequency varying, moreover some negative imaginary parts of conductance are observed. The negative imaginary part implies the capacitive behavior, and positive imaginary part refers to the inductive behavior.
    • 基金项目: 广东省高等学校优秀青年创新人才培养计划(批准号:LYM10098)和湛江师范学院博士科研基金(批准号:ZL1004)资助的课题.
    [1]

    Christen T, Bttiker M 1996 Phys. Rev. Lett. 77 143

    [2]

    Bttiker M, Prtre A, Thomas H 1993 Phys. Rev. Lett. 70 4114

    [3]
    [4]
    [5]

    Prtre A, Thomas H, Bttiker M 1996 Phys. Rev. B 54 8130

    [6]

    Fernando C L, Frensley W R 1995 Phys. Rev. B 52 5092

    [7]
    [8]
    [9]

    Wang J, Guo H 1999 Phys. Rev. B 59 7572

    [10]
    [11]

    Liu H C 1991 Phys. Rev. B 43 12538

    [12]

    Zhao X A, He J H 2004 Acta Phys. Sin. 53 1201 (in Chinese) [赵学安、何军辉 2004 物理学报 53 1201]

    [13]
    [14]

    Dong Z C 1999 Acta Phys. Sin. 48 511 (in Chinese) [董正超 1999 物理学报 48 511]

    [15]
    [16]

    Xu H, Song W P 2002 Acta Phys. Sin. 51 1798 (in Chinese) [徐 慧、宋袆璞 2002 物理学报 51 1798]

    [17]
    [18]
    [19]

    Jauho A P, Wingreen N S, Meir Y 1994 Phys. Rev. B 50 5528

    [20]

    Bttiker M 2000 J. Low Temp. Phys. 118 519

    [21]
    [22]

    Bttiker M 1993 J. Phys: Condens. Matter 5 9361

    [23]
    [24]

    Gabelli J, Fve G, Berroir J M, Placais B, Cavanna A, Etienne B, Jin Y, Glattli D C 2006 Science 313 499

    [25]
    [26]
    [27]

    Yu Y B, Liu Q H, Quan J, Tang Y H 2007 Phys. Rev. B 75 115329

    [28]

    Quan J, Liu Y X, Yu Y B 2010 Acta Phys. Sin. 59 1237(in Chinese)[全 军、刘一星、余亚斌 2010 物理学报 59 1237]

    [29]
    [30]

    Quan J, Yu Y B, Au Yeung T C 2009 Appl. Phys. Lett. 94 163116

    [31]
  • [1]

    Christen T, Bttiker M 1996 Phys. Rev. Lett. 77 143

    [2]

    Bttiker M, Prtre A, Thomas H 1993 Phys. Rev. Lett. 70 4114

    [3]
    [4]
    [5]

    Prtre A, Thomas H, Bttiker M 1996 Phys. Rev. B 54 8130

    [6]

    Fernando C L, Frensley W R 1995 Phys. Rev. B 52 5092

    [7]
    [8]
    [9]

    Wang J, Guo H 1999 Phys. Rev. B 59 7572

    [10]
    [11]

    Liu H C 1991 Phys. Rev. B 43 12538

    [12]

    Zhao X A, He J H 2004 Acta Phys. Sin. 53 1201 (in Chinese) [赵学安、何军辉 2004 物理学报 53 1201]

    [13]
    [14]

    Dong Z C 1999 Acta Phys. Sin. 48 511 (in Chinese) [董正超 1999 物理学报 48 511]

    [15]
    [16]

    Xu H, Song W P 2002 Acta Phys. Sin. 51 1798 (in Chinese) [徐 慧、宋袆璞 2002 物理学报 51 1798]

    [17]
    [18]
    [19]

    Jauho A P, Wingreen N S, Meir Y 1994 Phys. Rev. B 50 5528

    [20]

    Bttiker M 2000 J. Low Temp. Phys. 118 519

    [21]
    [22]

    Bttiker M 1993 J. Phys: Condens. Matter 5 9361

    [23]
    [24]

    Gabelli J, Fve G, Berroir J M, Placais B, Cavanna A, Etienne B, Jin Y, Glattli D C 2006 Science 313 499

    [25]
    [26]
    [27]

    Yu Y B, Liu Q H, Quan J, Tang Y H 2007 Phys. Rev. B 75 115329

    [28]

    Quan J, Liu Y X, Yu Y B 2010 Acta Phys. Sin. 59 1237(in Chinese)[全 军、刘一星、余亚斌 2010 物理学报 59 1237]

    [29]
    [30]

    Quan J, Yu Y B, Au Yeung T C 2009 Appl. Phys. Lett. 94 163116

    [31]
计量
  • 文章访问数:  5742
  • PDF下载量:  626
  • 被引次数: 0
出版历程
  • 收稿日期:  2010-11-09
  • 修回日期:  2011-03-16
  • 刊出日期:  2011-04-05

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