Top-seeded solution growth of SrTiO3 crystals and phase diagram studies in the SrO-TiO2 system
Abstract
The TiO2 rich part of the (1-x) SrO + x TiO2 phase diagram 0.5 <= x <= 1.0 was redetermined and the eutectic point between SrTiO3 and TiO2 was found at xeut=0.7700+/-0.0001; Teut=(1449+/-3) deg C. From TiO2 rich melt solutions, x=0.75 centimeter-sized single crystals could be grown. The best crystals with etch pit density <2 x 104/cm2 were obtained for growth directions <110> and <100>. AFM investigation of the interface reveals layer-by-layer growth.
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