TITLE

Creation and Annihilation of Fluxons in ac-driven Semiannular Josephson Junction

AUTHOR(S)
Nayak, Chitra R.; Kuriakose, V. C.
PUB. DATE
April 2011
SOURCE
AIP Conference Proceedings;4/19/2011, Vol. 1339 Issue 1, p319
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
A new geometry (semiannular) for Josephson junction has been proposed and theoretical studies have shown that the new geometry is useful for electronic applications [1, 2]. In this work we study the voltage-current response of the junction with a periodic modulation. The fluxon experiences an oscillating potential in the presence of the ac-bias which increases the depinning current value. We show that in a system with periodic boundary conditions, average progressive motion of fluxon commences after the amplitude of the ac drive exceeds a certain threshold value. The analytic studies are justified by simulating the equation using finite-difference method. We observe creation and annihilation of fluxons in semiannular Josephson junction with an ac-bias in the presence of an external magnetic field.
ACCESSION #
60078823

 

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