Density of states in the presence of spin-dependent scattering in SF bilayers: a numerical and analytical approach.

Authors :: Karabassov T
Pashkovskaia VD
Parkhomenko NA
Guravova AV
Kazakova EA
Lvov BG
Golubov AA
Vasenko AS
Source :: Beilstein journal of nanotechnology [Beilstein J Nanotechnol] 2022 Dec 01; Vol. 13, pp. 1418-1431. Date of Electronic Publication: 2022 Dec 01 (Print Publication: 2022).
Publication Year :: 2022
Abstract: We present a quantitative study of the density of states (DOS) in SF bilayers (where S is a bulk superconductor and F is a ferromagnetic metal) in the diffusive limit. We solve the quasiclassical Usadel equations in the structure considering the presence of magnetic and spin-orbit scattering. For practical reasons, we propose the analytical solution for the density of states in SF bilayers in the case of a thin ferromagnet and low transparency of the SF interface. This solution is confirmed by numerical calculations using a self-consistent two-step iterative method. The behavior of DOS dependencies on magnetic and spin-orbit scattering times is discussed.<br /> (Copyright © 2022, Karabassov et al.)

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