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arXiv 0812.0832cond-mat.mtrl-sci
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铼酸锶(SrRuO3)的铁磁共振观察

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

摘要:

利用时间分辨的磁光克尔效应,在SrRuO 3中观察到了铁磁共振现象。时域中的FMR振荡出现在响应于易轴各向异性方向上的突然的光学诱导变化。高的FMR频率,250 GHz,和大的吉尔伯特阻尼参数,α ~ 1,是一致的强自旋轨道耦合。我们发现,与磁化动力学,包括α,有一个非单调的温度依赖性,暗示的链接到异常霍尔效应的参数。

英文摘要:

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.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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