SPONTANEOUS MAGNETIZATION AND INVERSE MAGNETIC TRANSITIONS IN YTTRIUM-IRON GARNET FILMS AT TEMPERATURES MUCH HIGHER THAN <i>Т<sub>N</sub> </i>
The temperature dependence of the spontaneous magnetization of yttrium-iron garnet films grown by liquid phase epitaxy from a weakly dissociated solution-melt has been studied. There was found a weak spontaneous magnetization in the temperature range much higher than the Néel temperature (Т<sub>N</sub>) which for the standard YIG equals 560 K. In the temperature intervals of 720-750 K and 1100-1130 K there observed inverse magnetic transitions. Spontaneous magnetization and inverse magnetic transitions occur due to specific film crystallization.