Observation of ferromagnetic resonance in strontium ruthenate (SrRuO3)

M. C. Langner; C. L. S. Kantner; Y. H. Chu; L. W. Martin; P. Yu; R. Ramesh; J. Orenstein

Observation of ferromagnetic resonance in strontium ruthenate (SrRuO3)

Materials Science 2008-12-05 v1

Authors: M. C. Langner , C. L. S. Kantner , Y. H. Chu , L. W. Martin , P. Yu , R. Ramesh , J. Orenstein

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 anistropy. The high FMR frequency, 250 GHz, and large Gilbert damping parameter, alpha ~ 1, are consistent with strong spin-orbit coupling. We find that the parameters associated with the magnetization dynamics, including alpha, have a non-monotonic temperature dependence, suggestive of a link to the anomalous Hall effect.

Keywords

ferromagnetic resonance SrRuO3 magneto-optical Kerr effect Gilbert damping anomalous Hall effect

Cite

@article{arxiv.0812.0832,
  title  = {Observation of ferromagnetic resonance in strontium ruthenate (SrRuO3)},
  author = {M. C. Langner and C. L. S. Kantner and Y. H. Chu and L. W. Martin and P. Yu and R. Ramesh and J. Orenstein},
  journal= {arXiv preprint arXiv:0812.0832},
  year   = {2008}
}

Comments

submitted to Phys. Rev. Lett

Observation of ferromagnetic resonance in strontium ruthenate (SrRuO3)

Abstract

Keywords

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