Flokstra, MG, Cunningham, TC, Kim, J et al. (11 more authors) (2015) Controlled suppression of superconductivity by the generation of polarized Cooper pairs in spin-valve structures. Physical Review B - Condensed Matter and Materials Physics, 91 (6). ARTN 060501. ISSN 1098-0121
Abstract
Transport measurements are presented on thin-film superconducting spin-valve systems, where the controlled noncollinear arrangement of two ferromagnetic Co layers can be used to influence the superconducting state of Nb. We observe a very clear oscillation of the superconducting transition temperature with the relative orientation of the two ferromagnetic layers. Our measurements allow us to distinguish between the competing influences of domain averaging, stray dipolar fields, and the formation of superconducting spin triplets. Domain averaging is shown to lead to a weak enhancement of transition temperature for the antiparallel configuration of exchange fields, while much larger changes are observed for other configurations, which can be attributed to drainage currents due to spin triplet formation.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | (c) 2015 American Physical Society. This is an author produced version of a paper published in / accepted for publication in Physical Review B. Uploaded in accordance with the publisher's self-archiving policy |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Physics and Astronomy (Leeds) |
Funding Information: | Funder Grant number EPSRC EP/J010634/1 |
Depositing User: | Symplectic Publications |
Date Deposited: | 21 Apr 2015 10:18 |
Last Modified: | 05 Nov 2017 05:57 |
Published Version: | http://dx.doi.org/10.1103/PhysRevB.91.060501 |
Status: | Published |
Publisher: | American Physical Society |
Identification Number: | 10.1103/PhysRevB.91.060501 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:84070 |