Flux-periodic resistance oscillations in arrays of superconducting weak links based on InAs-AlSb quantum wells with Nb electrodes

被引：7

作者：

Thomas, M

Blank, HR

Wong, KC

Nguyen, C

Kroemer, H

Hu, EL

机构：

[1] UNIV CALIF SANTA BARBARA, DEPT PHYS, SANTA BARBARA, CA 93106 USA

[2] UNIV CALIF SANTA BARBARA, ELECT & COMP ENGN DEPT, SANTA BARBARA, CA 93106 USA

来源：

PHYSICAL REVIEW B | 1996年 / 54卷 / 04期

关键词：

D O I：

10.1103/PhysRevB.54.R2311

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

InAs-AlSb quantum wells contacted with periodic gratings of superconducting Nh electrodes show Josephson-junction characteristics at low temperatures. When a nonzero resistance is reestablished by a weak magnetic field, the resistance shows a strong component periodic in the magnetic field. At fields above similar to 300 mu T, the oscillation period corresponds to one flux quantum per grating cell; but in wide arrays (greater than or equal to 40 mu m), a frequency doubling takes place at low fields, indicating the formation of a staggered vortex superlattice at twice the littographic period.

引用

页码：R2311 / R2314

页数：4

共 14 条

[1]

Akazaki T, 1996, APPL PHYS LETT, V68, P418, DOI 10.1063/1.116704

[2] LONG-RANGE MAGNETIC INTERACTION BETWEEN JOSEPHSON-JUNCTIONS [J].