SIMULATIONS AND INTERPRETATION OF FRACTIONAL GIANT SHAPIRO STEPS IN 2-DIMENSIONAL JOSEPHSON-JUNCTION ARRAYS

被引：69

作者：

OCTAVIO, M

FREE, JU

BENZ, SP

NEWROCK, RS

MAST, DB

LOBB, CJ

机构：

[1] EASTERN NAZARENE COLL,QUINCY,MA 02170

[2] HARVARD UNIV,DEPT PHYS,CAMBRIDGE,MA 02138

[3] UNIV CINCINNATI,DEPT PHYS,CINCINNATI,OH 45221

[4] UNIV MARYLAND,DEPT PHYS,CTR SUPERCONDUCTIV RES,COLLEGE PK,MD 20742

来源：

PHYSICAL REVIEW B | 1991年 / 44卷 / 09期

关键词：

D O I：

10.1103/PhysRevB.44.4601

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We present simulations of two-dimensional Josephson-junction arrays to study giant Shapiro steps in these arrays. The amplitude and frequency dependence of the step widths is found to be more complex than in single junctions. The fractional step widths are found to decrease more rapidly with increasing frequency or rf current than conventional steps in single junctions. The washboard model of single junctions is extended to arrays to explain these differences between arrays and single junctions.

引用

页码：4601 / 4609

页数：9

共 24 条

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