De Long, L. E. and Kryukov, S. A. and Joshi , Amish G. and Xu , Wentao and Bosomtwi , A. and Kirby , B. J. and Fitzsimmons, M. R. (2008) Extreme magnetic anisotropy and multiple superconducting transition signatures in a [Nb(23 nm)/Ni(5 nm)]5 multilayer. Physica C: Superconductivity and its Applications, 468 (7-10). pp. 523-530. ISSN 0921-4534

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Abstract

We have applied polarized neutron reflectometry, and novel SQUID and vibrating reed magnetometry to probe a [Nb(23 nm)/Ni(5 nm)](5) multilayer (ML) whose superconducting state magnetic anisotropy is dominated by confined (in-plane) supercurrents in DC magnetic fields, H, applied nearly parallel to the ML plane. The upper critical field exhibits abrupt shifts (0.1-0.6 K) in near-parallel fields, but is field-independent for mu H-0 < 0.8 T when the ML is exactly aligned with the DC field, indicating suppression of orbital pairbreaking and the possible presence of unconventional superconducting pairing states. (c) 2008 Elsevier B.V. All rights reserved.

Item Type:	Article
Additional Information:	Copyright for this article belongs to M/S Elsevier B.V.
Uncontrolled Keywords:	superconducting multilayers; magnetic multilayers; neutron reflectometry; mesoscopic superconductors; superconducting critical field; superconducting phase diagrams
Subjects:	Physics
Divisions:	UNSPECIFIED
Depositing User:	Ms Neetu Chandra
Date Deposited:	08 Jan 2014 11:13
Last Modified:	08 Jan 2014 11:13
URI:	http://npl.csircentral.net/id/eprint/1022

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