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
收藏
页码：1526 / 1529
页数：4
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