Op. Dimitriev et Vz. Lozovski, ON THE POSSIBILITY OF LIGHT TRANSMITTANCE THROUGH A POLAR FERROMAGNETIN THE RESTSTRAHLEN BAND REGION, Journal of magnetism and magnetic materials, 131(1-2), 1994, pp. 120000009-120000013
Reflection of light by a polar ferromagnetic insulator in the reststra
hlen band region is theoretically studied. Under certain conditions a
narrow frequency band inside this region can be found which permits li
ght to transmit through the crystal.