%0 Journal Article
%A M.C Langner
%A C.L.S Kantner
%A Y.H Chu
%A L.M Martin
%A P Yu
%A Ramamoorthy Ramesh
%A J Orenstein
%B Physical Review B - Condensed Matter and Materials Physics
%D 2010
%G eng
%R 10.1103/PhysRevB.82.054425
%T Effective thermal boundary resistance from thermal decoupling of magnons and phonons in SrRuO3 thin films
%V 82
%X We use the time-resolved magneto-optical Kerr effect to measure the local temperature and heat-flow dynamics in ferromagnetic SrRuO3 thin films. After heating by a pump pulse, the film temperature decays exponentially, indicating that the heat flow out of the film is limited by the film/substrate interface. We show that this behavior is consistent with an effective boundary resistance resulting from disequilibrium between the spin and phonon temperatures in the film. © 2010 The American Physical Society.