EPR Studies of Crystal Field Parameters in Fe3+: LiNbO3

Abstract

ESR studies were performed on single crystals of LiNbO3 doped with a trace amount of iron. Fe3+(S=52) is in an axially symmetric site and is described by the spin Hamiltonian H=β (H· g· S)+B20O20+B40O40+B43O43. The crystal field parameters at room temperature were found to be B20=596 G, B40=−0.85 G, and B43=10 G.