Spin pumping between noncollinear ferromagnetic insulators through thin superconductors

no code implementations • 13 Jan 2021 • Haakon T. Simensen, Lina G. Johnsen, Jacob Linder, Arne Brataas

Furthermore, in superconductors, we find that the ratio between the backflow spin current in the parallel and anti-parallel magnetization configuration depends strongly on temperature, in contrast to the constant ratio in normal metals.

Superconductivity Mesoscale and Nanoscale Physics

Identifying the origin of the non-monotonic thickness dependence of spin-orbit torques and interfacial Dzyaloshinskii-Moriya interaction in a ferrimagnetic insulator heterostructure

no code implementations • 17 Dec 2020 • Shilei Ding, Lorenzo Baldrati, Andrew Ross, Zengyao Ren, Rui Wu, Sven Becker, Jinbo Yang, Gerhard Jakob, Arne Brataas, Mathias Kläui

We find that the non-monotonic SOT efficiency as a function of the magnetic layer thickness is not consistent with the 1/thickness dependence expected from a simple interfacial SOT mechanism.

Materials Science