Applied Physics Express · 2012 · 53 citations · 5 references
Natural SciencesMaterials EngineeringMaterials ScienceElectromagnetismMagnetic MaterialsThin FilmsFerromagnetic MaterialsFerromagnetismMagnetic AnisotropyMagnetic Thin FilmsMagnetization ProcessesThin Film Magnetic PropertiesFerromagnetic ResonanceMagnetic DampingMagnetization DynamicsMagnetization In Thin FilmsMagneto-optic Kerr EffectMagneto-optical Kerr EffectOptical Kerr EffectThin Film Magnetism
Gilbert damping is investigated in perpendicularly magnetized CoFeB thin films using ferromagnetic resonance and time-resolved magneto-optical Kerr effect. The CoFeB films were deposited on a MgO layer and annealed at different temperatures. The lowest effective damping constant αeff values were 0.017, 0.013, and 0.009 for the films annealed at 250, 300, and 350 °C, respectively; these values were smaller than the values reported previously.
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Shoji Ikeda, Jun Hayakawa, Yoshito Ashizawa et al. · Applied Physics Letters · 2008 · 1.5K citations
Natural Sciences, Materials Engineering, Materials Science +16