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arXiv · 0902.3991

Geometric pi Josephson junction: Current-phase relations and critical current

A. Gumann·C. Iniotakis·N. Schopohl
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Abstract

Josephson junctions with an intrinsic phase shift of pi, so-called pi Josephson junctions, can be realized by a weak link of a d-wave superconductor with an appropriate boundary geometry. A model for the pairing potential of an according weak link is introduced which allows for the calculation of the influence of geometric parameters and temperature. From this model, current-phase relations and the critical current of the device are derived. The range of validity of the model is determined by comparison with selfconsistent solutions.

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A. Gumann, C. Iniotakis, N. Schopohl. 2009-02-24. Geometric pi Josephson junction: Current-phase relations and critical current. https://doi.org/10.1109/tasc.2009.2019586

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