Magnetically controlled superconducting weak links | Zendy

Joris Van de Vondel | Zendy; A. V. Silhanek | Zendy; Bart Raes | Zendy; Werner Gillijns | Zendy; R. B. G. Kramer | Zendy; V. V. Moshchalkov | Zendy; J. Sautner | Zendy; V. Metlushko | Zendy

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Magnetically controlled superconducting weak links

Author(s) -

Joris Van de Vondel,

A. V. Silhanek,

Bart Raes,

Werner Gillijns,

R. B. G. Kramer,

V. V. Moshchalkov,

J. Sautner,

V. Metlushko

Publication year - 2009

Publication title -

applied physics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.182

H-Index - 442

eISSN - 1077-3118

pISSN - 0003-6951

DOI - 10.1063/1.3180492

Subject(s) - antiparallel (mathematics) , superconductivity , excitation , josephson effect , condensed matter physics , magnetic field , vortex , field (mathematics) , coupling (piping) , physics , materials science , topology (electrical circuits) , optoelectronics , electrical engineering , quantum mechanics , mathematics , engineering , pure mathematics , metallurgy , thermodynamics

We have designed and characterized a magnetic template which can be switched between chains of parallel and antiparallel field distribution by applying an in-plane magnetic field. The parallel field profile creates highly mobile vortex channels in a superconducting film deposited on top, reproducing the behavior of a weak link as evidenced by the presence of Shapiro steps in the current-voltage characteristics under rf excitation. The Josephson coupling can be fully suppressed by changing the field distribution to the antiparallel state. As a result, a reversible ON/OFF switch for magnetically induced weak links has been demonstrated.

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