Fig. 4: Temperature-dependent Z-mode characterisation in YMnO3.
From: Efficient spin excitation via ultrafast damping-like torques in antiferromagnets
a Frequency, b relaxation time, and c tangent of the initial phase of the optically induced spin precession as function of temperature. Green and red: model calculations with and without correction for non-damping-based excitation mechanisms, respectively. Grey line: fitted exponential decay.
