@article{33558, keywords = {Time-resolved, Resonance, Ferromagnetism, Ferromagnetic materials, Spin-orbit couplings, Magnetic field effects, Ferromagnetic resonance, Anomalous Hall effects (AHE), Easy-axis anisotropies, Gilbert damping parameters, Magnetization dynamics, Magneto-optical kerr effects, Nonmonotonic temperature dependences, Time domains, Hall effect, Kerr magnetooptical effect, Magnetos, Optical Kerr effect}, author = {M.C Langner and C.L.S Kantner and Y.H Chu and L.M Martin and P Yu and J Seidel and Ramamoorthy Ramesh and J Orenstein}, title = {Observation of ferromagnetic resonance in SrRuO3 by the time-resolved magneto-optical Kerr effect}, abstract = {We report the observation of ferromagnetic resonance (FMR) in SrRuO3 using the time-resolved magneto-optical Kerr effect. The FMR oscillations in the time-domain appear in response to a sudden, optically induced change in the direction of easy-axis anisotropy. The high FMR frequency, 250 GHz, and large Gilbert damping parameter, α 1, are consistent with strong spin-orbit coupling. We find that the parameters associated with the magnetization dynamics, including α, have a nonmonotonic temperature dependence, suggestive of a link to the anomalous Hall effect. © 2009 The American Physical Society.}, year = {2009}, journal = {Physical Review Letters}, volume = {102}, number = {17}, issn = {00319007}, doi = {10.1103/PhysRevLett.102.177601}, note = {cited By 39}, language = {eng}, }