Influence of interface double electric layer on superconducting proximity effect in ferromagnetic metals
V. M. Edelstein
Institute of Solid State Physics RAS, 142432 Chernogolovka, Moscow Reg., Russia
PACS: 71.70.Ej, 73.40.Jn, 74.20.-z, 74.50.+r
Abstract
Electric field within the double electric layer that occurs when
two conductors with different work functions come into contact
induces the interface spin-orbit coupling. In the case of contact
of a conventional, s-wave superconductor with a ferromagnetic
metal, the coupling is predicted to give rise to the appearance of
a triplet superconductivity on both sides of the interface. Form
of the triplet component of the condensation amplitude is
determined and the ability of the triplet superconductivity to
penetrate into the ferromagnet on the usual coherence length is
shown.