Josephson junction with variable thickness of the dielectric layer.

Dobrowolski, T; Jarmoliński, A · Phys Rev E · 2020

basic_science · Level V

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Abstract

The dynamics of the fluxon in the Josephson junction is studied. The dielectric layer of the junction has a variable thickness. It is shown that the modified area of the junction acts on the fluxon as a potential barrier. The relation between the critical bias current and the thickness of the dielectric layer is analytically and numerically determined.