DYNAMIC SIMULATIONS OF FRACTIONAL GIANT SHAPIRO STEPS

被引：3

作者：

BENZ, SP

FREE, JU

RZCHOWSKI, MS

TINKHAM, M

LOBB, CJ

OCTAVIO, M

机构：

[1] HARVARD UNIV,DIV APPL SCI,CAMBRIDGE,MA 02138

[2] INST VENEZOLANO INVEST CIENT,CARACAS 1010A,VENEZUELA

来源：

PHYSICA B | 1990年 / 165卷

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/S0921-4526(09)80409-2

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We have numerically simulated 2D arrays of resistively shunted Josephson junctions in the presence of commensurate magnetic fields and alternating and direct currents. Fractional giant Shapiro steps appear in the simulated current-voltage characteristics at values determined by the external magnetic field, in agreement with recent experimental measurements. We summarize previous results that confirm the model of vortex motion previously proposed by Benz, et al., and present further results at low frequencies that indicate the possibility of subharmonic fractional steps. © 1990, Elsevier Science Publishers B.V. (North-Holland). All rights reserved.

引用

页码：1647 / 1648

页数：2