PHOTOINDUCED POLARIZATION-DEPENDENT CHANGE IN THE DOMAIN-STRUCTURE OFAN IRON-GARNET FILM

It was found that the domain structure of a Bi-containing iron garnet film at room temperature changes under the action of linearly polarize d light. The accompanying change in the magnitude of the magnetization of the film depends on the intensity and the orientation of the polar ization plane of the irradiating light. The effect is associated with the photoinduced deformation produced in the crystal lattice by polari zation-sensitive charge transfer on magnetically anisotropic impurity centers. (C) 1995 American Institute of Physics.