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Superconductivity controlled by the magnetic state of ferromagnetic nanoparticles

A. A. Fraerman·B. A. Gribkov·S. A. Gusev·E. Ilichev·A. Yu. Klimov·Yu. N. Nozdrin·G. L. Pakhomov·V. V. Rogov·R. Stolz·S. N. Vdovichev
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Abstract

Novel hybrid superconductor/ferromagnetic particles structures are presented. Arrays of Co submicron particles were fabricated on overlap, edge type Josephson junctions and on a narrow Nb microbridge by means of high-resolution e-beam lithography.We observed a strong dependence between the magnetic state of the particles and the field-dependent critical $I_c(H)$ of these structures.

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A. A. Fraerman, B. A. Gribkov, S. A. Gusev, E. Ilichev, A. Yu. Klimov, Yu. N. Nozdrin, G. L. Pakhomov, V. V. Rogov, R. Stolz, S. N. Vdovichev. 2004-07-14. Superconductivity controlled by the magnetic state of ferromagnetic nanoparticles. https://arxiv.org/abs/cond-mat/0407249

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