Interplay between magnetism and superconductivity in Nb/Co multilayers

F. Y. Ogrin; S. L. Lee; A. D. Hillier; A. Mitchell; T. H. Shen

doi:10.1103/PhysRevB.62.6021

Interplay between magnetism and superconductivity in Nb/Co multilayers

F. Y. Ogrin, S. L. Lee, A. D. Hillier, A. Mitchell, T. H. Shen

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Abstract

We have used torque magnetometry to investigate the influence of magnetic spacer layers on the superconductivity in Nb/Co multilayers. Compared to similar systems which have nonmagnetic spacer layers, the samples exhibit two dimensional superconductivity for relatively thin magnetic layer thicknesses d_Co, reflecting the effects of magnetic pair breaking. Moreover, the transition temperature to the superconducting state T_c shows a nonmonatonic dependence on d_Co, which we examine within the framework of recent theories.

Original language	English
Pages (from-to)	6021-6026
Number of pages	6
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	62
Issue number	9
DOIs	https://doi.org/10.1103/PhysRevB.62.6021
Publication status	Published - 1 Sept 2000

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10.1103/PhysRevB.62.6021

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AU - Lee, S. L.

AU - Hillier, A. D.

AU - Mitchell, A.

AU - Shen, T. H.

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AB - We have used torque magnetometry to investigate the influence of magnetic spacer layers on the superconductivity in Nb/Co multilayers. Compared to similar systems which have nonmagnetic spacer layers, the samples exhibit two dimensional superconductivity for relatively thin magnetic layer thicknesses dCo, reflecting the effects of magnetic pair breaking. Moreover, the transition temperature to the superconducting state Tc shows a nonmonatonic dependence on dCo, which we examine within the framework of recent theories.

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Interplay between magnetism and superconductivity in Nb/Co multilayers

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