FLUXON DENSITY WAVES IN LONG JOSEPHSON-JUNCTIONS

被引：13
|
作者：
OLSEN, OH [1 ]
USTINOV, AV [1 ]
PEDERSEN, NF [1 ]
机构：
[1] TECH UNIV DENMARK,PHYS LAB 1,DK-2800 LYNGBY,DENMARK
来源：
PHYSICAL REVIEW B | 1993年 / 48卷 / 17期
关键词：
D O I：
10.1103/PhysRevB.48.13133
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Numerical simulations of the multiple fluxon dynamics stimulated by an external oscillating force applied at a boundary of a long Josephson junction are presented. The calculated I-V characteristics agree well with a recent experimental observation of rf-induced satellite flux-flow steps. The voltage spacing between the satellites and the main flux-flow step corresponds to the second harmonic of the external frequency. We find that the satellite flux-flow modes are characterized by collective excitations propagating through the fluxon chain. These dynamical states can be interpreted as fluxon density waves.
引用
收藏
页码：13133 / 13136
页数：4
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