Photoinduced linear birefringence in a crystal with cooperative ordering of Jahn-Teller distortions
Gnatchenko S. L., Eremenko V. V., Sofroneev S. V., Kharchenko N. F.
Photoinduced linear birefringence (PLB) in the tetragonal garnet óÁ3íÐ20ÅÚ012, a crystal with cooperative ordering of Jahn-Teller distortions, is observed and studied. The anisotropy of PLB is described phenomenologically and a microscopic mechanism for it is proposed. It is concluded that PLB can be observed in other crystals exhibiting a cooperative Jahn-Teller effect.