Proximity and coupling effects in superconductor/ferromagnet multilayers (invited)

Journal Article · Tue Apr 01 04:00:00 EST 1997 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.364545· OSTI ID:496585

Chien, C L; Jiang, J S; Xiao, J Q; Davidovic, D; Reich, D H ^[1]

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1. Department of Physics and Astronomy, The Johns Hopkins University, Baltimore, Maryland 21218 (United States)

New features in superconductor/ferromagnet multilayers have been observed. A nonmonotonic dependence of the superconducting T{sub c} on the ferromagnetic layer thickness, due to the coupling across a thin magnetic layer, has been observed in both Nb/Gd multilayers and trilayers. The results are consistent with those of the predicted {pi}-phase coupling. Effects on superconductivity due to insulating ferromagnetic layers have been observed in NbN/GdN multilayers, where the main pair-breaking effect is that of the ferromagnetic walls. The insulating ferromagnetic layers also give rise to very large superconducting critical fields. {copyright} {ital 1997 American Institute of Physics.}

• OSTI ID: 496585
• Report Number(s): CONF-961141--
• Journal Information: Journal of Applied Physics, Journal Name: Journal of Applied Physics Journal Issue: 8 Vol. 81; ISSN JAPIAU; ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
COUPLING
CRITICAL FIELD
FERROMAGNETIC MATERIALS
FERROMAGNETISM
GADOLINIUM
GADOLINIUM COMPOUNDS
GADOLINIUM NITRIDES
LAYERS
NIOBIUM
NIOBIUM COMPOUNDS
NIOBIUM NITRIDES
PROXIMITY EFFECT
SUPERCONDUCTIVITY