Triplet proximity effect in superconducting heterostructures with a half-metallic layer
MIRONOV, Sergei V.
Laboratoire Ondes et Matière d'Aquitaine [LOMA]
Moscow Institute of Physics and Technology [Moscow] [MIPT]
Institute for Physics of Microstructures of the RAS
Laboratoire Ondes et Matière d'Aquitaine [LOMA]
Moscow Institute of Physics and Technology [Moscow] [MIPT]
Institute for Physics of Microstructures of the RAS
MIRONOV, Sergei V.
Laboratoire Ondes et Matière d'Aquitaine [LOMA]
Moscow Institute of Physics and Technology [Moscow] [MIPT]
Institute for Physics of Microstructures of the RAS
< Réduire
Laboratoire Ondes et Matière d'Aquitaine [LOMA]
Moscow Institute of Physics and Technology [Moscow] [MIPT]
Institute for Physics of Microstructures of the RAS
Langue
en
Article de revue
Ce document a été publié dans
Physical Review B: Condensed Matter and Materials Physics (1998-2015). 2015-11-11, vol. 92, n° 18, p. 184506 (1-11)
American Physical Society
Résumé en anglais
We present the Usadel theory describing the superconducting proximity effect in heterostructures with a half-metallic layer. It is shown that the full spin polarization inside the half-metals gives rise to the giant triplet ...Lire la suite >
We present the Usadel theory describing the superconducting proximity effect in heterostructures with a half-metallic layer. It is shown that the full spin polarization inside the half-metals gives rise to the giant triplet spin-valve effect in superconductor (S) – ferromagnet (F) – half-metal (HM) trilayers as well as to the ϕ0-junction formation in the S/F/HM/F/S systems. In addition, we consider the exactly solvable model of the S/F/HM trilayers of atomic thickness and demonstrate that it reproduces the main features of the spin-valve effect found within the Usadel approach. Our results are shown to be in a qualitative agreement with the recent experimental data on the spin-valve effect in MoGe/Cu/Ni/CrO2 hybrids [A. Singh et al., Phys. Rev. X 5, 021019 (2015)].< Réduire
Mots clés en anglais
Multilayers - superlattices - heterostructures
Proximity effects - Andreev reflection - SN and SNS junctions
Spin polarized transport
Transition temperature variations - phase diagrams
Projet Européen
Nanoscale Superconductivity: Novel Functionalities through Optimized Confinement of Condensate and Fields
Project ANR
Etats de Majorana et d'Andreev dans des circuits hybrides combinant des matériaux magnétiques et supraconducteurs - ANR-12-BS04-0016
Origine
Importé de halUnités de recherche