Evidence for Triplet Superconductivity in a Superconductor-Ferromagnet Spin Valve

Autor:	Leksin, P. V., Garif'yanov, N. N., Garifullin, I. A., Fominov, Ya. V., Schumann, J., Krupskaya, Y., Kataev, V., Schmidt, O. G., Büchner, B.
Rok vydání:	2012
Předmět:	Condensed Matter - Superconductivity Condensed Matter - Mesoscale and Nanoscale Physics
Zdroj:	Phys. Rev. Lett. 109, 057005 (2012)
Druh dokumentu:	Working Paper
DOI:	10.1103/PhysRevLett.109.057005
Popis:	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. Comment: 5 pages (including 4 EPS figures). Version 2: final version as published in PRL
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1207.0727 Zobrazit plný text záznamu View this record from Arxiv