%0 Journal Article
%T Current-induced spin torque resonance of magnetic insulators
%A Takahiro Chiba
%A Gerrit E. W. Bauer
%A Saburo Takahashi
%J Physics
%D 2014
%I arXiv
%R 10.1103/PhysRevApplied.2.034003
%X We formulate a theory of the AC spin Hall magnetoresistance (SMR) in a bilayer system consisting of a magnetic insulator such as yttrium iron garnet (YIG) and a heavy metal such as platinum (Pt). We derive expressions for the DC voltage generation based on the drift-diffusion spin model and quantum mechanical boundary condition at the interface that reveal a spin torque ferromagnetic resonance (ST-FMR). We predict that ST-FMR experiments will reveal valuable information on the current-induced magnetization dynamics of magnetic insulators and AC spin Hall effect.
%U http://arxiv.org/abs/1404.2360v2