A new direction in the physics of magnetic phenomena strain-magneto-optics based on the correlation of magnetoelastic and magneto-optical properties has been created. Experimental data are important for theoretical studies of new magneto-optical properties and the creation of functional materials.Работа выполнена в рамках государственного задания Минестерства науки и высшего образования России (тема “Спин” №АААА-А18-118020290104-2)