Magnetic state modification induced by superconducting response in ferromagnet/superconductor Nb/Co superlattices

C. Monton; F. de la Cruz; J. Guimpel

doi:10.1103/PhysRevB.77.104521

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Magnetic state modification induced by superconducting response in ferromagnet/superconductor Nb/Co superlattices

C. Monton, F. de la Cruz, J. Guimpel

DOI 10.1103/PhysRevB.77.104521 · Physical Review B

T1

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Abstract

Magnetization measurements in superconductor/ferromagnet Nb∕Co superlattices show a complex behavior as a function of temperature, applied field, and sample history. Based on a simple model, it is shown that this behavior is due to an interplay between the superconductor magnetization temperature dependence, the ferromagnet magnetization time dependence, and the stray fields of both materials. It is also shown that the magnetic state of the Co layers is modified by the Nb superconducting response, implying that the problem of a superconductor/ferromagnetic heterogeneous sample has to be solved in a self-consistent manner.

Source-reported materials — not catalogue approval

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