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

J. Bindslev Hansen; Yu. Ya. Divin; J. Mygind

doi:10.1103/PhysRevB.33.605

← Back to search

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

J. Bindslev Hansen, Yu. Ya. Divin, J. Mygind

DOI 10.1103/PhysRevB.33.605 · Physical Review B

T1

Active bibliographic source — not scientific approval

Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.

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.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
Nb Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown
Pb Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown