Ultrafast laser-induced changes of the magnetic anisotropy in a low-symmetry iron garnet film
Ultrafast laser-induced changes of the magnetic anisotropy in a low-symmetry iron garnet film
We explore a thermal mechanism of changing the magnetic anisotropy by using femtosecond laser pulses in a low-symmetry dielectric ferrimagnetic garnet ${(\mathrm{YBiPrLu})}_{3}{(\mathrm{FeGa})}_{5}{\mathrm{O}}_{12}$ film grown on the (210)-type ${\mathrm{Gd}}_{3}{\mathrm{Ga}}_{5}{\mathrm{O}}_{12}$ substrate as a model media. Employing spectral magneto-optical pump-probe technique and phenomenological analysis, we demonstrate that the magnetization precession in this film …