Robust coupling of superconducting order parameter in a mesoscale NbN–Fe–NbN epitaxial structure
SK Bose, RC Budhani - Applied Physics Letters, 2009 - pubs.aip.org
We report an unconventional and promising route to self-assemble distributed
superconductor-ferromagnet-superconductor (SFS) Josephson junctions on single crystal
[100] MgO. These structures consist of [110] epitaxial nanoplaquettes of Fe covered with
superconducting NbN films of varying thickness. The SFS structures are characterized by a
strong magnetoresistance (MR) anisotropy for the in-plane and out-of-plane magnetic fields.
The stronger in-plane MR suggests decoherence of SFS junctions whose critical current …
superconductor-ferromagnet-superconductor (SFS) Josephson junctions on single crystal
[100] MgO. These structures consist of [110] epitaxial nanoplaquettes of Fe covered with
superconducting NbN films of varying thickness. The SFS structures are characterized by a
strong magnetoresistance (MR) anisotropy for the in-plane and out-of-plane magnetic fields.
The stronger in-plane MR suggests decoherence of SFS junctions whose critical current …
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