Imperial College London

Professor Lesley F Cohen

Faculty of Natural SciencesDepartment of Physics

Associate Provost (Equality, Diversity and Inclusion)
 
 
 
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Contact

 

+44 (0)20 7594 7598l.cohen Website CV

 
 
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Assistant

 

Mrs Carolyn Dale +44 (0)20 7594 7579

 
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Location

 

1111Blackett LaboratorySouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Jeon:2019:10.1103/PhysRevB.99.144503,
author = {Jeon, K-R and Ciccarelli, C and Kurebayashi, H and Cohen, LF and Komori, S and Robinson, JWA and Blamire, MG},
doi = {10.1103/PhysRevB.99.144503},
journal = {Physical Review B (Condensed Matter)},
title = {Abrikosov vortex nucleation and its detrimental effect on superconducting spin pumping in Pt/Nb/Ni80Fe20/Nb/Pt proximity structures},
url = {http://dx.doi.org/10.1103/PhysRevB.99.144503},
volume = {99},
year = {2019}
}

RIS format (EndNote, RefMan)

TY  - JOUR
AB - We report Abrikosov vortex nucleation in Pt/Nb/Ni80Fe20/Nb/Pt proximity-coupled structures under oblique ferromagnetic resonance that turns out to be detrimental to superconducting spin pumping. By measuring an out-of-plane field-angle θH dependence and comparing with Pt-absent control samples, we show that as θH increases, the degree of enhancement (suppression) of spin pumping efficiency in the superconducting state for the Pt-present (Pt-absent) sample diminishes and it reverts to the normal state value at θH=90. This can be explained in terms of a substantial out-of-plane component of the resonance field for the Ni80Fe20 layer (with in-plane magnetization anisotropy and high aspect ratio) that approaches the upper critical field of the Nb, turning a large fraction of the singlet superconductor volume into the normal state.
AU - Jeon,K-R
AU - Ciccarelli,C
AU - Kurebayashi,H
AU - Cohen,LF
AU - Komori,S
AU - Robinson,JWA
AU - Blamire,MG
DO - 10.1103/PhysRevB.99.144503
PY - 2019///
SN - 0163-1829
TI - Abrikosov vortex nucleation and its detrimental effect on superconducting spin pumping in Pt/Nb/Ni80Fe20/Nb/Pt proximity structures
T2 - Physical Review B (Condensed Matter)
UR - http://dx.doi.org/10.1103/PhysRevB.99.144503
UR - http://hdl.handle.net/10044/1/69672
VL - 99
ER -