Document Type

Journal Article

Role

Author

Standard Number

1098-0121

Journal Title

Physical Review B

Volume

52

Issue

21

First Page

15458

Publication Date

1995

Abstract

We study the effects of quenched disorder on the dynamics of two-dimensional arrays of overdamped Josephson junctions. Disorder in both the junction critical currents and resistances is considered. Analytical results for small arrays are used to identify a physical mechanism which promotes frequency locking across each row of the array, and to show that no such locking mechanism exists between rows. The intrarow locking mechanism is surprisingly strong, so that a row can tolerate large amounts of disorder before frequency locking is destroyed.

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