PHOTOINDUCED MAGNETIZATION SWITCHINGS IN COBALT-DOPED YIG-FILMS

Photoinduced remagnetization was found in YIG:Co films grown by LPE on the (001) plane of a GGG substrate. Linearly polarized light was used for magnetization switching from the [110] type to the [($) over bar 110] type direction. The influence of a magnetic field applied in the sample plane was also studied. The switching time was measured as a fu nction of: (i) the angle of light polarization orientation; (ii) the m agnetic field amplitude; and (iii) the temperature. The results obtain ed are discussed in the frame of the developed theory, taking into con sideration photoinduced changes in the magnetic anisotropy.