Influence of the passive region on Zero Field Steps for window Josephson junctions

Details Influence of the passive region on Zero Field Steps for window Josephson junctions Influence of the passive region on Zero Field Steps for window Josephson junctions

2002-03-31

arxiv.org/abs/cond-mat/0204010v1

Physics

Condensed Matter

Superconductivity

12 pages, 13 figures

Scientific paper

10.1063/1.1503856

We present a numerical and analytic study of the influence of the passive region on fluxon dynamics in a window junction. We examine the effect of the extension of the passive region and its electromagnetic characteristics, its surface inductance and capacitance. When the velocity in the passive region $v_{I}$ is equal to the Swihart velocity (1) a one dimensional model describes well the operation of the device. When $v_{I}$ is different from 1, the fluxon adapts its velocity to $v_{I}$. In both cases we give simple formulas for the position of the limiting voltage of the zero field steps. Large values of inductance and capacitance lead to different types of solutions which are analyzed.

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