Magnetooptic garnet-ferrite films with high-speed response and thermostability

We have studied the effect of temperature on the relationship between the domain wall (DW) velocity $V$ and the active magnetic field strength $H$ in (Bi,Eu)$_3$(Fe,Ga)$_5$O$_{12}$ single-crystal garnet-ferrite films grown by the liquid-phase epitaxy technique from a supercooled solution-melt on (Gd,Ca)$_3$(Mg,Zr,Ga)$_5$O$_{12}$ substrates of different orientation. These films are shown to have a DW velocity of $V>1$ km/s near the moment of momentum compensation point, this rate changing by 34% at $H=200$ Oe in the temperature range $T=25$-$100$$^о$C under study in the case of (110) orientation where orthorhombic magnetic anisotropy is induced.