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量子点调制的一维量子波导中声学声子输运和热导

彭小芳 王新军 龚志强 陈丽群

量子点调制的一维量子波导中声学声子输运和热导

彭小芳, 王新军, 龚志强, 陈丽群
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  • 利用散射矩阵方法,比较了被一维凸形量子点、凹形量子点调制的量子线中膨胀模的声子输运和热导性质. 研究结果表明: 声子的输运概率与热导受制于量子点几何结构,具有凸形量子点结构的量子线中声子输运概率与热导KCV大于具有凹形量子点结构的量子线中声子输运概率与热导KCC. 两者热导之比KCV/KCC依赖于一维量子点的具体结构,且随着温度及主量子线与量子点横截面的边长差SL的增加而增加. 两种具有不同散射结构的一维量子线中热输运性质的区别在于凸形量子点结构中膨胀模数量总是大于凹形量子点结构中膨胀模数量的缘故.
    • 基金项目: 中南林业科技大学人才引进计划(批准号: 104-0160)资助的课题.
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  • [1]

    Blencowe M P 2004 Phys. Rep. 395 159

    [2]

    Tighe T S, Worlock J M, Roukes M L 1997 Appl. Phys. Lett. 70 2687

    [3]
    [4]

    Wees B J, Houten H, Beenakker C W J, Williamson J G, Kouwenhoven L P, Marel D, Foxon C T 1988 Phys. Rev. Lett. 60 848

    [5]
    [6]

    Muller J E 1992 Phys. Rev. Lett. 68 385

    [7]
    [8]

    Duan W H, Zhu J L, Gu B L 1994 Phys. Rev. B 49 14403

    [9]
    [10]
    [11]

    Chklovsii D B 1995 Phys. Rev. B 51 9895

    [12]

    Li J, Zhang Z Q, Liu Y 1997 Phys. Rev. B 55 5337

    [13]
    [14]

    Gu B Y, Sheng W D, Wang X H, Wang J 1997 Phys. Rev. B 56 13434

    [15]
    [16]
    [17]

    Sim H S, Ahn K H, Chang K J, Ihm G, Kim N, Lee S J 1998 Phys. Rev. Lett. 80 1501

    [18]

    Wang X H, Gu B Y, Yang G Z 1998 Phys. Rev. B 58 4629

    [19]
    [20]
    [21]

    Chen K Q, Gu B Y, Chuu D S 1999 Int. J. Mod. Phys. B 13 903

    [22]
    [23]

    Chen K Q, Wang X H, Gu B Y 2000 Phys. Rev. B 61 12075

    [24]

    Xu H Q 2002 Phys. Rev. B 66 165305

    [25]
    [26]

    Wu H B, Chang K, Xia J B 2002 Phys. Rev. B 65 195204

    [27]
    [28]

    Zhu J L, Dai Z S, Hu X 2003 Phys. Rev. B 68 45324

    [29]
    [30]
    [31]

    Xia J B, Li S S 2003 Phys. Rev. B 68 75310

    [32]
    [33]

    Huang W Q, Chen K Q, Shuai Z G, Wang L L, Hu W Y 2004 Acta Phys. Sin. 53 2330 (in Chinese) [黄维清、陈克求、帅志刚、王玲玲、胡望宇 2004 物理学报 53 2330 ]

    [34]
    [35]

    Wang X J, Wang L L, Huang W Q, Tang L M, Chen K Q 2006 Acta Phys. Sin. 55 3649 (in Chinese) [王新军、王玲玲、黄维清、唐黎明、陈克求 2006 物理学报 55 3649 ]

    [36]
    [37]

    Rego L G C, Kirczenow G 1998 Phys. Rev. Lett. 81 232

    [38]

    Schwab K, Henriksen E A, Norlock J M, Roukes M L 2000 Nature 404 974

    [39]
    [40]

    Meschke M, Guichard W, Pekola J 2006 Nature 444 187

    [41]
    [42]
    [43]

    Ojanen T, Heikkila T T 2007 Phys. Rev. B 76 073414

    [44]

    Chiatti O, Nicholls J T, Proskuryakov Y, Lumpkin Y N, Farrer I, Ritchie D A 2006 Phys. Rev. Lett. 97 056601

    [45]
    [46]
    [47]

    Cross M C, Lifshitz R 2001 Phys. Rev. B 64 85324

    [48]
    [49]

    Chang C M, Geller M R 2005 Phys. Rev. B 71 125304

    [50]
    [51]

    Tang L M, Wang L L, Chen K Q, Huang W Q, Zou B S 2006 Appl. Phys. Lett. 88 163505

    [52]
    [53]

    Peng X F, He M D, Wang X J, Chen L C, Pan C L, Luo Y F 2011 Physica E 43 1065

    [54]

    Nie L Y, Wang L L, Chen K Q, Zou B S, Zhao L H 2007 Physica E 39 185

    [55]
    [56]
    [57]

    Xie F, Chen K Q, Wang Y G, Zhang Y 2008 J. Appl. Phys. 103 084501

    [58]

    Li K M, Wang L L, Huang W Q, Zou B S, Wan Q 2009 J. Appl. Phys. 105 104515

    [59]
    [60]
    [61]

    Santamore D H, Cross M C 2001 Phys. Rev. Lett. 87 115502

    [62]

    Santamore D H, Cross M C 2001 Phys. Rev. B 63 184306

    [63]
    [64]

    Chen K Q, Li W X, Duan W H, Shuai Z, Gu B L 2005 Phys. Rev. B 72 045422

    [65]
    [66]
    [67]

    Li W X, Chen K Q, Duan W H, Wu J, Gu B L 2004 J. Phys.: Condens. Matter 16 5049

    [68]
    [69]

    Huang W Q, Chen K Q, Shuai Z, Wang L L, Hu W Y, Zou B S 2005 J. Appl. Phys. 98 093524

    [70]
    [71]

    Yang P, Sun Q F, Guo H, Hu B B 2007 Phys. Rev. B 75 235319

    [72]
    [73]

    Li K M, Wang L L, Huang W Q, Zou B S, Wan Q 2008 Phys. Lett. A 372 5816

    [74]

    Volz S G, Chen G 1999 Appl. Phys. Lett. 75 2056

    [75]
    [76]

    Li B W, Wang L, Casati G 2004 Phys. Rev. Lett. 93 184301

    [77]
    [78]
    [79]

    Hu B B, Yang L, Zhang Y 2006 Phys. Rev. Lett. 97 124302

    [80]
    [81]

    Eckmann J P, Carlos M M 2006 Phys. Rev. Lett. 97 094301

    [82]

    Li W X, Chen K Q, Duan W H, Wu J, Gu B L 2004 Appl. Phys. Lett. 85 822

    [83]
    [84]
    [85]

    Ming Y, Wang Z X, Li Q, Ding Z Z 2007 Appl. Phys. Lett. 91 143508

    [86]

    Peng X F, Chen K Q 2010 Physica E 42 1968

    [87]
    [88]

    Peng X F, Chen K Q, Zou B S, Zhang Y 2007 Appl. Phys. Lett. 90 193502

    [89]
    [90]

    Tanaka Y, Yoshida F, Tamura S 2005 Phys. Rev. B 71 205308

    [91]
    [92]

    Peng X F, Chen K Q, Wang Q, Zhou B S 2010 Phys. Rev. B 81 195317

    [93]
  • 引用本文:
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出版历程
  • 收稿日期:  2010-11-24
  • 修回日期:  2011-06-27
  • 刊出日期:  2011-06-05

量子点调制的一维量子波导中声学声子输运和热导

  • 1. 中南林业科技大学理学院,长沙 410004
    基金项目: 

    中南林业科技大学人才引进计划(批准号: 104-0160)资助的课题.

摘要: 利用散射矩阵方法,比较了被一维凸形量子点、凹形量子点调制的量子线中膨胀模的声子输运和热导性质. 研究结果表明: 声子的输运概率与热导受制于量子点几何结构,具有凸形量子点结构的量子线中声子输运概率与热导KCV大于具有凹形量子点结构的量子线中声子输运概率与热导KCC. 两者热导之比KCV/KCC依赖于一维量子点的具体结构,且随着温度及主量子线与量子点横截面的边长差SL的增加而增加. 两种具有不同散射结构的一维量子线中热输运性质的区别在于凸形量子点结构中膨胀模数量总是大于凹形量子点结构中膨胀模数量的缘故.

English Abstract

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