THEORY OF SHAPIRO STEPS IN JOSEPHSON-JUNCTION ARRAYS AND THEIR TOPOLOGY

被引：31

作者：

KVALE, M

HEBBOUL, SE

机构：

[1] Physics Department, Ohio State University, Columbus, OH 43210

来源：

PHYSICAL REVIEW B | 1991年 / 43卷 / 04期

关键词：

D O I：

10.1103/PhysRevB.43.3720

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A simple theory of Shapiro steps in a Josephson-junction (JJ) array immersed in a magnetic field is presented. It is argued that the system can be regarded as the superposition of a JJ array in zero field and a vortex lattice generated by the magnetic field. The subsystems obey the resistively-shunted-junction equations of motion, and interference effects result in steps at 1/q,2/q,... for a filling factor of p/q. The exactness of the steps is shown to result from the topological quantization of the order parameter for dissipative systems.

引用

页码：3720 / 3723

页数：4

共 25 条

[1] QUANTIZATION OF THE HALL CONDUCTANCE FOR GENERAL, MULTIPARTICLE SCHRODINGER HAMILTONIANS [J].