Projects per year
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.
Original language | English |
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Article number | 060501 |
Number of pages | 5 |
Journal | Physical Review B : Condensed Matter and Materials Physics |
Volume | 91 |
Issue number | 6-1 |
DOIs | |
Publication status | Published - 2 Feb 2015 |
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Dive into the research topics of 'Controlled suppression of superconductivity by the generation of polarized Cooper pairs in spin-valve structures'. Together they form a unique fingerprint.Projects
- 2 Finished
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SFM Consortium: Generation, Imaging and Control of Novel Coherent Electronic States
Bending, S. (PI)
Engineering and Physical Sciences Research Council
29/03/12 → 28/09/16
Project: Research council
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Current - Driven Domain Wall Motion in Artificial Magnetic Domain Structures
Bending, S. (PI) & Crampin, S. (CoI)
Engineering and Physical Sciences Research Council
1/05/09 → 31/01/13
Project: Research council