Figure 2.
(a) ST-FMR resonance response at 100 K, for frequencies from 4 to 8 GHz at zero DC bias voltage. Several curves have been scaled as indicated. (b) The 6 GHz resonance line fit to the derivative of Lorentzian functions characterizing the symmetric (red) and asymmetric components (yellow) response. (c) ST-FMR line width as a function of frequency with a linear fit that enables determination of the damping constant α and inhomogeneous line width ΔH0. (d) The resonant field as a function of frequency. Inset: effective magnetization as a function of temperature. The error bars for the line widths and the resonance fields are indicated as black lines and are within the size of the data points.