Imperial College London
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Professor Lesley F Cohen

Faculty of Natural Sciences, Department 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:2020:10.1103/PhysRevX.10.031020,
author = {Jeon, K-R and Montiel, X and Komori, S and Ciccarelli, C and Haigh, J and Kurebayashi, H and Cohen, L and Chan, AK and Stenning, KD and Lee, C-M and Blamire, MG and Robinson, JWA},
doi = {10.1103/PhysRevX.10.031020},
journal = {Physical Review X},
title = {Tunable pure spin supercurrents and the demonstration 3 of their gateability in a spin-wave device},
url = {http://dx.doi.org/10.1103/PhysRevX.10.031020},
volume = {10},
year = {2020}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Recent ferromagnetic resonance experiments and theory of Pt/Nb/Ni8Fe2 proximity-coupled structures strongly suggest that spin-orbit coupling (SOC) in Pt in conjunction with a magnetic exchange field in Ni8Fe2 are the essential ingredients to generate a pure spin supercurrent channel in Nb. Here, by substituting Pt for a perpendicularly magnetized Pt/Co/Pt spin-sink, we are able to demonstrate the role of SOC, and show that pure spin supercurrent pumping efficiency across Nb is tunable by controlling the magnetization direction of Co. By inserting a Cu spacer with weak SOC between Nb and Pt/(Co/Pt) spin-sink, we also prove that Rashba-type SOC is key for forming and transmitting pure spin supercurrents across Nb. Finally, by engineering these properties within a single multilayer structure, we demonstrate a prototype superconducting spin-wave (SW) device in which lateral SW propagation is gateable via the opening or closing of a vertical pure spin supercurrent channel in Nb.
AU  - Jeon,K-R
AU  - Montiel,X
AU  - Komori,S
AU  - Ciccarelli,C
AU  - Haigh,J
AU  - Kurebayashi,H
AU  - Cohen,L
AU  - Chan,AK
AU  - Stenning,KD
AU  - Lee,C-M
AU  - Blamire,MG
AU  - Robinson,JWA
DO  - 10.1103/PhysRevX.10.031020
PY  - 2020///
SN  - 2160-3308
TI  - Tunable pure spin supercurrents and the demonstration 3 of their gateability in a spin-wave device
T2  - Physical Review X
UR  - http://dx.doi.org/10.1103/PhysRevX.10.031020
UR  - http://hdl.handle.net/10044/1/80743
VL  - 10
ER  -
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