Single Crystals of (PbxSr1-x) TiO3 Grown by Traveling Heater Method |
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Authors: | B. DIBENEDETTO C. J. CRONAN |
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Affiliation: | Tyco Laboratories, Inc., Hear Hill, Waltham, Massachusetts 0215 |
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Abstract: | A procedure is presented for growing single crystals of (PbxSr1-x)TiO3 by passing solvent zones through poly-crystalline rods of the same composition (THM). The solvent zone composition for homogeneous solid solution growth was chosen from the pseudoquaternary system 2PbO: 1B2O3-2SrO:1B2O3-PbTiO3-SrTiO3. Crystals with compositions throughout the complete range of PbTiO3-SrTiOs solid solutions were grown. Emphasis was placed on crystal compositions near (Pb0.25Sr0.78) TiO3 which have Curie temperatures just below room temperature. The dielectric constants, Curie temperatures, and optical properties of these single crystals are presented. Nonlinear dielectric and electrooptic behaviors are also demonstrated. |
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