Effective thermal boundary resistance from thermal decoupling of magnons and phonons in SrRuO3 thin films

M. C. Langner, C. L.S. Kantner, Ying-hao Chu, L. M. Martin, P. Yu, R. Ramesh, J. Orenstein

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

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.

Original languageEnglish
Article number054425
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume82
Issue number5
DOIs
StatePublished - 19 Aug 2010

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