Single-channel transmission in gold one-atom contacts and chains -: art. no. 121407

被引：27

作者：

Rubio-Bollinger, G ^{[1
]}

de las Heras, C

Bascones, E

Agraït, N

Guinea, F

Vieira, S

机构：

[1] Univ Autonoma Madrid, Inst Univ Ciencia Mat Nicolas Cabrera, E-28049 Madrid, Spain

[2] CSIC, Inst Ciencia Mat, E-28049 Madrid, Spain

[3] Univ Texas, Dept Phys, Austin, TX 78712 USA

来源：

PHYSICAL REVIEW B | 2003年 / 67卷 / 12期

关键词：

D O I：

10.1103/PhysRevB.67.121407

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We induce superconductivity by proximity effect in thin layers of gold and study the number of conduction channels which contribute to the current in one-atom contacts and atomic wires. The atomic contacts and wires are fabricated with a scanning tunneling microscope. The set of transmission probabilities of the conduction channels is obtained from the analysis of the I(V) characteristic curve which is highly nonlinear due to multiple Andreev reflections. In agreement with theoretical calculations, we find that there is only one channel that is almost completely open.

引用

页数：4

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