Vortex and nonvortex nucleation of superconductivity in ferromagnetic-superconducting-ferromagnetic triple layers

Marko Ledvij; Ljiljana Dobrosavljević-Grujić; Zoran Radović; John R. Clem

doi:10.1103/PhysRevB.44.859

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Vortex and nonvortex nucleation of superconductivity in ferromagnetic-superconducting-ferromagnetic triple layers

Marko Ledvij, Ljiljana Dobrosavljević-Grujić, Zoran Radović, John R. Clem

DOI 10.1103/PhysRevB.44.859 · Physical Review B

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Abstract

Superconducting nucleation fields for ferromagnetic-superconducting-ferromagnetic (M/S/M) triple layers are calculated when the magnetic field is applied parallel to the S/M interfaces, the S layer is of arbitrary thickness d, and the M metals are identical and very thick. Both vortex and nonvortex nucleation are considered and the thickness dcr at which the vortices start to nucleate is determined. Since the superconductivity is significantly suppressed near the S/M interfaces, the thickness dcr substantially increases with respect to the case of a single S film.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
V/Fe Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown