Giant charge-to-spin conversion in ferromagnet via spin-orbit coupling.

ABSTRACT: Converting charge current into spin current via the spin Hall effect enables efficient manipulation of magnetization by electrical current. However, its geometrical restriction is a serious obstacle to device applications because it prevents switching of perpendicular magnetization in the absence of an external field. To resolve this issue, ferromagnetic materials have attracted attentions because their time reversal asymmetry induces magnetic-dependent charge-to-spin conversion that removes this restriction. Here, we achieved a large enhancement of magnetic-dependent charge-to-spin conversion by clarifying its mechanism. Through layer thickness dependence of the conversion efficiency, we revealed a coexistence of interfacial and bulk contributions to the magnetic-dependent charge-to-spin

SUBMITTER: Hibino Y 

PROVIDER: S-EPMC8556288 | biostudies-literature | 2021 Oct

REPOSITORIES: biostudies-literature