Structural studies of lithium niobate crystals doped with cerium

In this research the structural characteristics of LiNbO3 : Ce (0.13–2.15 mol. %) samples were studied.The concentration dependences of the unit cell parameters of LiNbO3 : Ce crystals were considered. The mechanism of impurity incorporation and the location of intrinsic defects in a LiNbO3 : Ce crystal (0.43 mol. %) were established. Cerium occupied the vacant lithium position in the lithium niobate lattice.