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Open access
Nature Communications, volume 5, issue 1, publication number 3048

Evidence for spin selectivity of triplet pairs in superconducting spin valves.

Publication typeJournal Article
Publication date2014-01-09
Quartile SCImago
Q1
Quartile WOS
Q1
Impact factor16.6
ISSN20411723, 20411723
General Chemistry
General Biochemistry, Genetics and Molecular Biology
General Physics and Astronomy
Abstract
Spin selectivity in a ferromagnet results from a difference in the density of up- and down-spin electrons at the Fermi energy as a consequence of which the scattering rates depend on the spin orientation of the electrons. This property is utilized in spintronics to control the flow of electrons by ferromagnets in a ferromagnet (F1)/normal metal (N)/ferromagnet (F2) spin valve, where F1 acts as the polarizer and F2 the analyser. The feasibility of superconducting spintronics depends on the spin sensitivity of ferromagnets to the spin of the equal spin-triplet Cooper pairs, which arise in superconductor (S)–ferromagnet (F) heterostructures with magnetic inhomogeneity at the S–F interface. Here we report a critical temperature dependence on magnetic configuration in current-in-plane F–S–F spin valves with a holmium spin mixer at the S–F interface providing evidence of a spin selectivity of the ferromagnets to the spin of the triplet Cooper pairs. Ferromagnets are an integral part of spintronics because of their spin selectivity, but in combination with superconductors selectivity between different Cooper pairs is required. Here, the authors find evidence for this selectivity in a ferromagnet–superconductor–ferromagnet spin valve.

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BANERJEE N. et al. Evidence for spin selectivity of triplet pairs in superconducting spin valves. // Nature Communications. 2014. Vol. 5. No. 1. 3048
GOST all authors (up to 50) Copy
BANERJEE N., Smiet C. B., Smits R. G. J., Ozaeta A., BERGERET F. S., Blamire M. G., Robinson J. Evidence for spin selectivity of triplet pairs in superconducting spin valves. // Nature Communications. 2014. Vol. 5. No. 1. 3048
RIS |
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RIS Copy
TY - JOUR
DO - 10.1038/ncomms4048
UR - https://doi.org/10.1038/ncomms4048
TI - Evidence for spin selectivity of triplet pairs in superconducting spin valves.
T2 - Nature Communications
AU - BANERJEE, N.
AU - Smiet, C B
AU - Smits, R G J
AU - Ozaeta, A
AU - BERGERET, F. S.
AU - Blamire, M. G.
AU - Robinson, J. W. A.
PY - 2014
DA - 2014/01/09
PB - Springer Nature
IS - 1
VL - 5
SN - 2041-1723
SN - 2041-1723
ER -
BibTex
Cite this
BibTex Copy
@article{2014_BANERJEE,
author = {N. BANERJEE and C B Smiet and R G J Smits and A Ozaeta and F. S. BERGERET and M. G. Blamire and J. W. A. Robinson},
title = {Evidence for spin selectivity of triplet pairs in superconducting spin valves.},
journal = {Nature Communications},
year = {2014},
volume = {5},
publisher = {Springer Nature},
month = {jan},
url = {https://doi.org/10.1038/ncomms4048},
number = {1},
doi = {10.1038/ncomms4048}
}
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