Heat-induced damping modification in YIG/Pt hetero-structures
  We experimentally demonstrate the manipulation of magnetization relaxation utilizing a temperature difference across the thickness of an yttrium iron garnet/platinum (YIG/Pt) hetero-structure: the damping is either increased or decreased depending on the sign of the temperature gradient. This effect might be explained by a thermally-induced spin torque on the magnetization precession. The heat-induced variation of the damping is detected by microwave techniques as well as by a DC voltage caused by spin pumping into the adjacent Pt layer and the subsequent conversion into a charge current by the inverse spin Hall effect. 
M. B. Jungfleisch, T. An, K. Ando, Y. Kajiwara, K. Uchida, V. I.   Vasyuchka, A. V. Chumak, A. A. Serga, E. Saitoh, and B. H...
cond-mat.mes-hall cond-mat.mtrl-sci