Andreev scattering in nanoscopic junctions in a magnetic field

被引：25

作者：

Suderow, H ^{[1
]}

Bascones, E

Belzig, W

Guinea, F

Vieira, S

机构：

[1] Univ Autonoma Madrid, Fac Ciencias, Inst Ciencia Mat Nicolas Cabrera, Dept Fis Mat Condensada,Lab Bajas Temp, E-28049 Madrid, Spain

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

[3] Delft Univ Technol, Appl Phys Lab, NL-2628 CJ Delft, Netherlands

[4] DIMES, NL-2628 CJ Delft, Netherlands

来源：

EUROPHYSICS LETTERS | 2000年 / 50卷 / 06期

关键词：

D O I：

10.1209/epl/i2000-00544-3

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report on the measurement of multiple Andreev resonances at atomic size point contacts between two superconducting nanostructures of Pb under magnetic fields higher than the bulk critical field, where superconductivity is restricted to a mesoscopic region near the contact. The small number of conduction channels in this type of contacts permits a quantitative comparison with theory through the whole field range. We discuss in detail the physical properties of our structure, in which the normal bulk electrodes induce a proximity effect into the mesoscopic superconducting part.

引用

页码：749 / 755

页数：7

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