Non-Gaussian distribution of Coulomb blockade peak heights in quantum dots

被引:150
作者
Chang, AM [1 ]
Baranger, HU [1 ]
Pfeiffer, LN [1 ]
West, KW [1 ]
Chang, TY [1 ]
机构
[1] AT&T BELL LABS,HOLMDEL,NJ 07733
关键词
D O I
10.1103/PhysRevLett.76.1695
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We have observed a strongly non-Gaussian distribution of Coulomb blockade conductance peak heights for tunneling through quantum dots. At zero magnetic field, a low-conductance spike dominates the distribution; the distribution at nonzero field is distinctly different and still non-Gaussian. The observed distributions are consistent with theoretical predictions based on single-level tunneling and the concept of ''quantum chaos'' in a closed system weakly coupled to leads.
引用
收藏
页码:1695 / 1698
页数:4
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共 37 条
  • [1] Quantum-chaotic scattering effects in semiconductor microstructures
    Baranger, Harold U.
    Jalabert, Rodolfo A.
    Stone, A. Douglas
    [J]. CHAOS, 1993, 3 (04) : 665 - 682
  • [2] WEAK-LOCALIZATION AND INTEGRABILITY IN BALLISTIC CAVITIES
    BARANGER, HU
    JALABERT, RA
    STONE, AD
    [J]. PHYSICAL REVIEW LETTERS, 1993, 70 (25) : 3876 - 3879
  • [3] MESOSCOPIC TRANSPORT THROUGH CHAOTIC CAVITIES - A RANDOM S-MATRIX THEORY APPROACH
    BARANGER, HU
    MELLO, PA
    [J]. PHYSICAL REVIEW LETTERS, 1994, 73 (01) : 142 - 145
  • [4] EFFECT OF PHASE BREAKING ON QUANTUM TRANSPORT THROUGH CHAOTIC CAVITIES
    BARANGER, HU
    MELLO, PA
    [J]. PHYSICAL REVIEW B, 1995, 51 (07) : 4703 - 4706
  • [5] THEORY OF COULOMB-BLOCKADE OSCILLATIONS IN THE CONDUCTANCE OF A QUANTUM DOT
    BEENAKKER, CWJ
    [J]. PHYSICAL REVIEW B, 1991, 44 (04) : 1646 - 1656
  • [6] INFLUENCE OF SHAPE ON ELECTRON-TRANSPORT IN BALLISTIC QUANTUM DOTS
    BERRY, MJ
    KATINE, JA
    WESTERVELT, RM
    GOSSARD, AC
    [J]. PHYSICAL REVIEW B, 1994, 50 (23): : 17721 - 17724
  • [7] SPECTRAL CHARACTERISTICS OF CONDUCTANCE FLUCTUATIONS IN BALLISTIC QUANTUM DOTS
    BIRD, JP
    ISHIBASHI, K
    AOYAGI, Y
    SUGANO, T
    OCHIAI, Y
    [J]. PHYSICAL REVIEW B, 1994, 50 (24): : 18678 - 18681
  • [8] QUANTUM CHAOS IN A DEFORMABLE BILLIARD - APPLICATIONS TO QUANTUM DOTS
    BRUUS, H
    STONE, AD
    [J]. PHYSICAL REVIEW B, 1994, 50 (24) : 18275 - 18287
  • [9] MAGNETIC RESPONSE OF A SINGLE, ISOLATED GOLD LOOP
    CHANDRASEKHAR, V
    WEBB, RA
    BRADY, MJ
    KETCHEN, MB
    GALLAGHER, WJ
    KLEINSASSER, A
    [J]. PHYSICAL REVIEW LETTERS, 1991, 67 (25) : 3578 - 3581
  • [10] WEAK-LOCALIZATION IN CHAOTIC VERSUS NONCHAOTIC CAVITIES - A STRIKING DIFFERENCE IN THE LINE-SHAPE
    CHANG, AM
    BARANGER, HU
    PFEIFFER, LN
    WEST, KW
    [J]. PHYSICAL REVIEW LETTERS, 1994, 73 (15) : 2111 - 2114