Rectification by an imprinted phase in a Josephson junction

Golibjon Berdiyorov, M. V. Milošević, L. Covaci, F. M. Peeters

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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.

Original languageEnglish
Article number177008
JournalPhysical Review Letters
Volume107
Issue number17
DOIs
Publication statusPublished - 21 Oct 2011
Externally publishedYes

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ASJC Scopus subject areas

  • Physics and Astronomy(all)

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