The discontinuity of a spin-current through an interface caused by spin-orbit coupling is characterized by the spin memory loss (SML) parameter {\delta}. We use first-principles scattering theory and a recently developed local current scheme to study the SML for Au|Pt, Au|Pd, Py|Pt and Co|Pt interfaces. We find a minimal temperature dependence for nonmagnetic interfaces and a strong dependence for interfaces involving ferromagnets that we attribute to the spin disorder. The SML is larger for Co|Pt than for Py|Pt because the interface is more abrupt. Lattice mismatch and interface alloying strongly enhance the SML that is larger for a Au|Pt than for a Au|Pd interface. The effect of the proximity induced magnetization of Pt is negligible.
Cite
@article{arxiv.2001.11520,
title = {Disorder Dependence of Interface Spin Memory Loss},
author = {Kriti Gupta and Rien J. H. Wesselink and Ruixi Liu and Zhe Yuan and Paul J. Kelly},
journal= {arXiv preprint arXiv:2001.11520},
year = {2021}
}