Spontaneous magnetic moments in clean normal-metal–superconductor proximity layers

Felix Niederer; Alban L. Fauchère; Gianni Blatter

doi:10.1103/PhysRevB.65.132515

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Spontaneous magnetic moments in clean normal-metal–superconductor proximity layers

Felix Niederer, Alban L. Fauchère, Gianni Blatter

DOI 10.1103/PhysRevB.65.132515 · Physical Review B

T1

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Abstract

We investigate the spontaneous paramagnetic moments in clean normal-metal–superconductor proximity layers caused by the π-state currents that arise at the interface if a repulsive electron-electron interaction is assumed in the normal metal. Accounting for the nonlocal current response characteristic of the clean limit, we present a self-consistent numerical solution of the coupled Eilenberger and Maxwell equations in the limits of small and large electron densities, the latter giving rise to an internal magnetic breakdown. Comparison with experiment allows us to estimate the normal-metal coupling constant.

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
Ag Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown