Fig. 4. Magnetic anisotropies of FeRh/Pt at different temperatures.

a, b In-plane rotation angle φ_H-dependent resonance field of FeRh (10)/Pt at 11 GHz and at a 400 K and b 310 K. The data are fitted (solid lines) to extract the magnetic anisotropy parameters. c Temperature dependence of μ₀M_eff (spheres) and $K_{\mathrm{U}}^{\perp }$(squares) measured at φ_H = 45° of FeRh (10)/Pt during cooling into the phase transition region (blue spheres and squares). The error bars, which are standard deviations obtained from the fit, are smaller than the size of the symbols.