Thermal stability of the magnetic parameters of epitaxial iron garnet films subjected to planar radial stresses

The effect of external planar radial pressure on the thermal stability of the magnetic parameters of epitaxial iron garnet films is investigated in the temperature range 200–500 K for external mechanical stresses in the range 0–40 kgf/mm². It is shown that external planar radial pressure can be used to improve the thermal stability of these magnetic parameters by a factor of 1.5–2, and also to alter significantly the temperature interval of single-domain behavior for orientational phase transitions near a compensation point. Zh. Tekh. Fiz. 67, 114–116 (September 1997)