Synthesis, properties, and crystal structures of some new solid solutions in the systems KTiOPO4-TlTiOPO4, RbTiOPO4-TlTiOPO4, and KTiOPO4-KGeOPO4

1996 
Crystals of solid solutions of K0.82Tl0.18TiOPO4, K0.59Tl0.41TiOPO4, Rb0.77Tl0.23TiOPO4, KGe0.04Ti0.96OPO4, KGe0.06Ti0.94OPO4, KGe0.18Ti0.82OPO4, TlTiOPO4 and KGeOPO4 were obtained by crystallization from nonstoichiometric melts. These crystals belong to the ferroelectric family which possesses superionic conductivity of the KTiOPO4-type. Their crystal structures were established and electrophysical characteristics were studied. The crystals are orthorhombic, sp.gr. Pna21. In these crystals, as compared to KTiOPO4 crystals, TiO6-octahedra have a more regular structure, that is one of the reasons of the differences in the nonlinear optical characteristics.© (1996) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
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