Singh, Gyanendra and Joshi, P. C. and Budhani, R. C. (2012) Non-planar spin texture driven dissipation in a ferromagnet-superconductor bilayer. Physica C: Superconductivity, 472 (1). pp. 44-49. ISSN 0921-4534

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Abstract

We report the observation of a pronounced dip in the in-plane magnetic field (H-parallel to) dependence of the critical current density J(c)(H) and a peak in resistance R(H) of a NbN-HoNi5 bilayer at temperatures below the magnetic ordering temperature (T-Curie approximate to 3.5 K) of HoNi5, which is lower than the onset temperature approximate to 9 K) of superconductivity in the NbN layer. The extrema in J(c)(H) and R(H) appear at fields much below the upper critical field of NbN. We attribute these features to a coupling between localized out-of-plane moments present in the magnetic film and Pearl vortices of the superconducting layer. A spin re-orientation transition of the localized moments by H-parallel to breaks this coupling, leading to the observed excess dissipation.

Item Type:	Article
Additional Information:	copyright for this article belongs to M/s Elsevier
Subjects:	Applied Physics/Condensed Matter
Divisions:	UNSPECIFIED
Depositing User:	Users 27 not found.
Date Deposited:	19 Aug 2026 11:06
Last Modified:	19 Aug 2026 11:06
URI:	https://npl.csircentral.net/id/eprint/3471

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