GENERATION OF SUBHARMONIC SHAPIRO STEPS IN LADDER ARRAYS OF OVERDAMPED SUPERCONDUCTING JUNCTIONS

被引：1
作者：
CIRIA, JC
GIOVANNELLA, C
机构：
[1] UNIV ROMA TOR VERGATA,INFM,I-00133 ROME,ITALY
[2] UNIV ROMA TOR VERGATA,IST NAZL FIS NUCL,I-00133 ROME,ITALY
来源：
NUOVO CIMENTO DELLA SOCIETA ITALIANA DI FISICA D-CONDENSED MATTER ATOMIC MOLECULAR AND CHEMICAL PHYSICS FLUIDS PLASMAS BIOPHYSICS | 1994年 / 16卷 / 12期
关键词：
D O I：
10.1007/BF02471866
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Subharmonic Shapiro Steps (SSS) are usually observed in 2D arrays of superconducting junctions when their dynamical states are perturbed by factors like disorder, frustration, current inhomogeneities and so on. In order to clarify the conditions under which SSS can be generated we decided to investigate arrays of very simple shape like the ladder ones. In particular we have studied the influence of the frustration (i.e. of an external magnetic field) on the time evolution of the vortex configuration and the commensurability of the latter with the geometry and the dimension of the array. Ladders, parallel or perpendicular to the bias current, turn out to be systems where the properties of the square arrays can be suitably tested.
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页码：2053 / 2059
页数：7
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