Nonhomogeneous magnetic order in superconductor-ferromagnet multilayers

F. S. Bergeret; K. B. Efetov; A. I. Larkin

doi:10.1103/PhysRevB.62.11872

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Nonhomogeneous magnetic order in superconductor-ferromagnet multilayers

F. S. Bergeret, K. B. Efetov, A. I. Larkin

DOI 10.1103/PhysRevB.62.11872 · Physical Review B

T1

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Abstract

We study the possibility of a nonhomogeneous magnetic order [cryptoferromagnetic (CF) state] in heterostructures consisting of a bulk superconductor and a ferromagnetic thin layer, due to the influence of the superconductor. The exchange field in the ferromagnet may be strong and exceed the inverse mean free time. An approach based on solving the Eilenberger equations in the ferromagnet and the Usadel equations in the superconductor is developed. We derive a phase diagram between the cryptoferromagnetic and ferromagnetic states and discuss the possibility of an experimental observation of the CF state in different materials.

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.	10	Pressure not reported	unknown