Superconducting spin valve effect and triplet superconductivity in CoO$_x$/Fe1/Cu/Fe2/Cu/Pb multilayer
P. V. Leksin, N. N. Garifyanov, A. A. Kamashev, Ya. V. Fominov, J., Schumann, C. Hess, V. Kataev, B. Buechner, I. A. Garifullin
TL;DR
This paper investigates the magnetic and superconducting properties of a CoOx/Fe1/Cu/Fe2/Cu/Pb multilayer system, demonstrating enhanced interface transparency and exploring the superconducting spin valve effect and triplet superconductivity.
Contribution
It introduces a Cu interlayer to improve interface quality and provides a theoretical analysis of the superconducting spin valve effect and triplet pairing in the multilayer.
Findings
Enhanced interface transparency due to Cu interlayer.
Observation of long-range triplet superconductivity.
Theoretical description of the spin valve effect.
Abstract
We report magnetic and superconducting properties of the modified spin valve system CoOx/Fe1/Cu/Fe2/Cu/Pb. Introduction of a Cu interlayer between Fe2 and Pb layers prevents material interdiffusion process, increases the Fe2/Pb interface transparency, stabilizes and enhances properties of the system. This allowed us to perform a comprehensive study of such heterostructures and to present theoretical description of the superconducting spin valve effect and of the manifestation of the long-range triplet component of the superconducting condensate.
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Taxonomy
TopicsMagnetic properties of thin films · Copper Interconnects and Reliability · Physics of Superconductivity and Magnetism