Polarization-dependent photoinduced changes in magnetic-resonance parameters in α Fe2O3:Ga,Yb
Patrin G. S. , Volkov N. V. , Petrakovskii G. A.
Photoinduced changes in magnetic properties have been observed in weakly ferromagnetic crystals of hematite doped with ytterbium ions. Changes in both the magnitude of the resonant field and the width of the antiferromagnetic-resonance line are observed at T< 130 K, depending on the polarization of the light. The effect is attributed to a photoinduced conversion of a center containing an ytterbium ion. © 1995 American Institute of Physics.