[en] We investigate the nucleation of superconductivity in a superconducting Al strip under the influence of the magnetic field generated by a current-carrying Nb wire, perpendicularly oriented and located underneath the strip. The inhomogeneous magnetic field, induced by the Nb wire, produces a spatial modulation of the critical temperature Tc, leading to a controllable localization of the superconducting order parameter (OP) wavefunction. We demonstrate that close to the phase boundary Tc(Bext) the localized OP solution can be displaced reversibly by either applying an external perpendicular magnetic field Bext or by changing the amplitude of the inhomogeneous field.
Disciplines :
Physics
Author, co-author :
Ataklti, G.W.; Katholieke Universiteit Leuven - KUL
Aladyshkin, A.Yu.; Russian Academy of Sciences Nizhny Novgorod > Institute for Physics of Microstructures
Gillijns, W.; Katholieke Universiteit Leuven - KUL
Nefedov, I.N.; Russian Academy of Sciences Nizhny Novgorod > Institute for Physics of Microstructures
Van de Vondel, J.; Katholieke Universiteit Leuven - KUL
Silhanek, Alejandro ; Université de Liège - ULiège > Département de physique > Physique de la matière condensée
Kemmler, M.; Universitat Tubingen > Experimentalphysik II and Center for Collective Quantum Phenomena
Kleiner, R.; Universitat Tubingen > Experimentalphysik II and Center for Collective Quantum Phenomena
Koelle, D.; Universitat Tubingen > Experimentalphysik II and Center for Collective Quantum Phenomena
Moshchalkov, V.V.; Katholieke Universiteit Leuven - KUL
Language :
English
Title :
Localization of superconductivity in superconductor–electromagnet hybrids
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