Full splitting of the first zero-field steps in the I-V curve of Josephson junctions of intermediate length

Jørn Bindslev Hansen, Yu. Ya. Divin, Jesper Mygind

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Abstract

We report on the observation of full splitting of the first zero-field steps in the I-V curves of Josephson transmission lines of intermediate length L≊(3–5)λJ, where λJ is the Josephson penetration length. We study in detail how this splitting of the step into two branches depends on the temperature of the junction and on a weak applied magnetic field. We relate the splitting to excitations in the junctions whose behavior is described by the perturbed sine-Gordon equation.
Original languageEnglish
JournalPhysical Review B
Volume33
Issue number1
Pages (from-to)605-607
ISSN2469-9950
DOIs
Publication statusPublished - 1986

Bibliographical note

Copyright (1986) by the American Physical Society.

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