SYNCHRONIZATION OF FLUXON MOTION ON SHAPIRO STEPS IN JOSEPHSON-JUNCTIONS

被引：2
|
作者：
GRONBECHJENSEN, N
LOMDAHL, PS
机构：
[1] Theoretical Division, Los Alamos National Laboratory, Los Alamos
来源：
PHYSICS LETTERS A | 1993年 / 177卷 / 4-5期
关键词：
D O I：
10.1016/0375-9601(93)90014-Q
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We demonstrate that shuttling fluxons can exist on Shapiro steps in open ended long Josephson junctions driven by a large amplitude, high frequency, electric field if the junction is described by the overlap geometry. If a small amplitude, low frequency, magnetic field is applied to the system we further demonstrate that the frequency of the shuttling fluxon may phase-lock to a subharmonic of the frequency of the magnetic field. Analytical expressions for the range of phase-locking in bias current are evaluated and excellent agreement is found when these are compared to the results of direct numerical simulations of the perturbed sine-Gordon equation, modeling the junction.
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页码：351 / 356
页数：6
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