A Raman spectroscopic study was performed to investigate Ba1−xSrxTiO3 ceramics prepared using a solid‐state reaction technique. A single‐phase perovskite structure of the ceramics was verified and no mechanical stresses or grain size effects were identified within the sensitivity of the Raman micro‐probe. The tetragonal to cubic transition temperature that was found to decrease linearly from 137 to 7 °C with increasing Sr content from x = 0.00 to x = 0.35 corroborated the dielectric results on single crystals.
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Dobal et al. (2001) studied this question.
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