FLUX PHASES AND QUANTIZED PINNING FORCE IN SUPERCONDUCTOR WITH A PERIODIC LATTICE OF PINNING CENTERS

被引：77

作者：

BAERT, M ^{[1
]}

METLUSHKO, VV ^{[1
]}

JONCKHEERE, R ^{[1
]}

MOSHCHALKOV, VV ^{[1
]}

BRUYNSERAEDE, Y ^{[1
]}

机构：

[1] INTERUNIV MICROELECTR CTR,B-3001 LOUVAIN,BELGIUM

来源：

EUROPHYSICS LETTERS | 1995年 / 29卷 / 02期

关键词：

D O I：

10.1209/0295-5075/29/2/009

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Flux phases have been studied in superconducting Pb/Ge multilayers with a square lattice of submicrometre holes. Sharp peaks in the magnetic-field dependence of the critical current have been observed at integer H(m) and rational H(k/l) matching fields. At integer fields an artificial ''flux line crystal'' is formed, consisting of a stable square lattice of single or multiple flux quanta trapped by the holes. The existence of such a crystal leads to the quantization of the pinning force. New rational flux lines patterns at H = H(k/l), qualitatively different from those previously seen in superconducting networks, have been identified.

引用

页码：157 / 162

页数：6

共 16 条

[1]

BAERT M, UNPUB

[2]

BAERT M, UNPUB PHYS REV LETT

[3] DIMENSIONAL AND FLUX LATTICE TRANSITIONS IN ARTIFICIALLY LAYERED SUPERCONDUCTORS [J].