Rectification by an Imprinted Phase in a Josephson Junction

G. R. Berdiyorov, M. V. Milošević, L. Covaci, and F. M. Peeters
Phys. Rev. Lett. 107, 177008 – Published 21 October 2011
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Abstract

A Josephson phase shift can be induced in a Josephson junction by a strategically nearby pinned Abrikosov vortex (AV). For an asymmetric distribution of an imprinted phase along the junction (controlled by the position of the AV) such a simple system is capable of rectification of ac current in a broad and tunable frequency range. The resulting rectified voltage is a consequence of the directed motion of a Josephson antivortex which forms a pair with the AV when at local equilibrium. The proposed realization of the ratchet potential by an imprinted phase is more efficient than the asymmetric geometry of the junction itself, is easily realizable experimentally, and provides rectification even in the absence of an applied magnetic field.

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  • Received 11 March 2011

DOI:https://doi.org/10.1103/PhysRevLett.107.177008

© 2011 American Physical Society

Authors & Affiliations

G. R. Berdiyorov, M. V. Milošević, L. Covaci, and F. M. Peeters*

  • Departement Fysica, Universiteit Antwerpen, Groenenborgerlaan 171, B-2020 Antwerpen, Belgium

  • *francois.peeters@ua.ac.be

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Issue

Vol. 107, Iss. 17 — 21 October 2011

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