Temperature dependence of magnetic resonance in ferrimagnetic GdFeCo alloys
Temperature dependence of magnetic resonance in ferrimagnetic GdFeCo alloys
We provide a macroscopic theory and experimental results for magnetic resonances of antiferromagnetically-coupled ferrimagnets. Our theory, which interpolates the dynamics of antiferromagnets and ferromagnets smoothly, can describe ferrimagnetic resonances across the angular momentum compensation point. We also present experimental results for spin-torque induced ferrimagnetic resonance at several temperatures. The spectral …