Open Access
Physical Review Letters, volume 109, issue 5, publication number 057005
Evidence for triplet superconductivity in a superconductor-ferromagnet spin valve.
P. V. Leksin
1
,
N.N Garif’yanov
1
,
I. A. GARIFULLIN
1
,
I.A. Garifullin
1
,
Ya V Fominov
2, 3
,
Ya. V. Fominov
2, 3
,
J. Schümann
4
,
Joachim Schumann
4
,
Y Krupskaya
4
,
Y. Krupskaya
4
,
V. Kataev
4
,
V. E. Kataev
4
,
O G Schmidt
4
,
Oliver G Schmidt
4
,
B. Büchner
4, 5
Publication type: Journal Article
Publication date: 2012-08-01
Journal:
Physical Review Letters
scimago Q1
SJR: 3.040
CiteScore: 16.5
Impact factor: 8.1
ISSN: 00319007, 10797114
PubMed ID:
23006203
General Physics and Astronomy
Abstract
We have studied the dependence of the superconducting (SC) transition temperature on the mutual orientation of magnetizations of Fe1 and Fe2 layers in the spin valve system CoO(x)/Fe1/Cu/Fe2/Pb. We find that this dependence is nonmonotonic when passing from the parallel to the antiparallel case and reveals a distinct minimum near the orthogonal configuration. The analysis of the data in the framework of the SC triplet spin valve theory gives direct evidence for the long-range triplet superconductivity arising due to noncollinearity of the two magnetizations.
Found
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