title: Spin pumping in the presence of spin-orbit coupling.
abstract: Spin pumping and related phenomena have been observed recently in heavy metals and topological insulators, where the spin-orbit coupling plays an essential role. We have developed a spin-pumping formalism that explicitly includes the spin-orbit coupling at interfaces and disorder in the layers. Spin pumping across an interface with spin-orbit coupling and the attendant backflow are treated on an equal footing. We resolve some long-standing issues on the conflicting conclusions about the spin-diffusion length for Pt, and the origin of spin-memory loss at interfaces with heavy metals. In addition, we predict some heretofore unanticipated spin-pumping phenomena.
authors: Department of Physics, University of Arizona, Tucson, Arizona 85721, USA.
authors: Kai
authors: K
authors: Chen
authors: Department of Physics, University of Arizona, Tucson, Arizona 85721, USA.
authors: Shufeng
authors: S
authors: Zhang