Quantum suppression of shot noise in atom-size metallic contacts

被引：148

作者：

van den Brom, HE ^{[1
]}

van Ruitenbeek, JM ^{[1
]}

机构：

[1] Leiden Univ, Kamerlingh Onnes Lab, NL-2300 RA Leiden, Netherlands

来源：

PHYSICAL REVIEW LETTERS | 1999年 / 82卷 / 07期

关键词：

D O I：

10.1103/PhysRevLett.82.1526

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The transmission of conductance modes in atom-size gold contacts is investigated by simultaneously measuring conductance and shot noise. The results give unambiguous evidence that the current in the smallest gold contacts is mostly carried by nearly fully transmitted modes. In particular, for a single-atom contact the contribution of additional modes is only a few percent. In contrast, the trivalent metal aluminum does not show this property. [S0031-9007(99)08411-2].

引用

页码：1526 / 1529

页数：4

共 26 条

[1] SUPPRESSION OF SHOT NOISE IN METALLIC DIFFUSIVE CONDUCTORS
BEENAKKER, CWJ
BUTTIKER, M
[J]. PHYSICAL REVIEW B, 1992, 46 (03): : 1889 - 1892
[2] SEMICLASSICAL THEORY OF SHOT NOISE AND ITS SUPPRESSION IN A CONDUCTOR WITH DETERMINISTIC SCATTERING
BEENAKKER, CWJ
VANHOUTEN, H
[J]. PHYSICAL REVIEW B, 1991, 43 (14): : 12066 - 12069
[3] QUANTIZED CONDUCTANCE IN ATOM-SIZED WIRES BETWEEN 2 METALS
BRANDBYGE, M
SCHIOTZ, J
SORENSEN, MR
STOLTZE, P
JACOBSEN, KW
NORSKOV, JK
OLESEN, L
LAEGSGAARD, E
STENSGAARD, I
BESENBACHER, F
[J]. PHYSICAL REVIEW B, 1995, 52 (11) : 8499 - 8514
[4] Conductance eigenchannels in nanocontacts
Brandbyge, M
Sorensen, MR
Jacobsen, KW
[J]. PHYSICAL REVIEW B, 1997, 56 (23): : 14956 - 14959
[5] SCATTERING-THEORY OF THERMAL AND EXCESS NOISE IN OPEN CONDUCTORS
BUTTIKER, M
[J]. PHYSICAL REVIEW LETTERS, 1990, 65 (23) : 2901 - 2904
[6] SCATTERING-THEORY OF CURRENT AND INTENSITY NOISE CORRELATIONS IN CONDUCTORS AND WAVE GUIDES
BUTTIKER, M
[J]. PHYSICAL REVIEW B, 1992, 46 (19): : 12485 - 12507
[7] Microscopic origin of conducting channels in metallic atomic-size contacts
Cuevas, JC
Yeyati, AL
Martin-Rodero, A
[J]. PHYSICAL REVIEW LETTERS, 1998, 80 (05) : 1066 - 1069
[8] MESOSCOPIC FLUCTUATIONS IN THE SHOT-NOISE POWER OF METALS
DEJONG, MJM
BEENAKKER, CWJ
[J]. PHYSICAL REVIEW B, 1992, 46 (20) : 13400 - 13406
[9] Observation of conductance quantization of ballistic metallic point contacts at room temperature
Gai, Z
He, Y
Yu, HB
Yang, WS
[J]. PHYSICAL REVIEW B, 1996, 53 (03): : 1042 - 1045
[10] THE SIGNATURE OF CONDUCTANCE QUANTIZATION IN METALLIC POINT CONTACTS
KRANS, JM
VANRUITENBEEK, JM
FISUN, VV
YANSON, IK
DEJONGH, LJ
[J]. NATURE, 1995, 375 (6534) : 767 - 769

← 1 2 3 →