MESOSCOPIC TRANSPORT IN TUNABLE ANDREEV INTERFEROMETERS

被引：85

作者：

DEVEGVAR, PGN

FULTON, TA

MALLISON, WH

MILLER, RE

机构：

[1] AT and T Bell Laboratories, Murray Hill

来源：

PHYSICAL REVIEW LETTERS | 1994年 / 73卷 / 10期

关键词：

D O I：

10.1103/PhysRevLett.73.1416

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Low temperature transport measurements have been performed on nanofabricated Au wires a few mu m long contacting two Nb electrodes whose superconducting phase difference Delta theta was externally controlled. Delta theta was generated by passing a known supercurrent through a series array of 28 Nb-AlOx- Nb Josephson junctions. The conductance of the Au wire displays a component in Delta theta with period 2 pi. These conductance oscillations arise from the change in scattering boundary conditions of quasiparticles in the Au wire at the Au-Nb interfaces due to Andreev reflection.

引用

页码：1416 / 1419

页数：4

共 18 条

[1]

ALTSHULER BL, 1987, ZH EKSP TEOR FIZ, V65, P343

[2]

ANDREEV AF, 1964, ZH EKSP TEOR FIZ, V19, P1228

[3] MAGNETIC-FLUX EFFECTS IN DISORDERED CONDUCTORS [J].