Coherent behavior of 2N-Josephson junction closed loop

Voltage-current characteristics of a superconducting closed loop which consists of a parallel combination of two linear series arrays of N-Josephson junctions are theoretically and experimentally investigated for N = 3. The results show that the RF-induced constant voltage steps in v-i characteristi...

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Bibliographic Details
Published in:Applied physics letters 1983-03, Vol.42 (5), p.475-476
Main Authors: Kobayashi, T, Hamasaki, K, Kondoh, N, Komata, T, Yamashita, T
Format: Article
Language:English
Online Access:Get full text
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Summary:Voltage-current characteristics of a superconducting closed loop which consists of a parallel combination of two linear series arrays of N-Josephson junctions are theoretically and experimentally investigated for N = 3. The results show that the RF-induced constant voltage steps in v-i characteristics in the presence of the RF radiation of frequency F appear at voltages corresponding to nNFphi0 with an integer n. It is found that the junctions show a coherent behavior even though the closed loop does not consist of identical junctions. The voltage standard application of this circuit seems feasible.
ISSN:0003-6951
DOI:10.1063/1.93975