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Raman study of phase transition in ferroelectric Ba0.95Ca0.05TiO3 |
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| Authors: | Rekha Rao A P Roy B A Dasannacharya S Balakumar R Ilangovan P Ramasamy |
| Institution: | (1) Solid State Physics Division, Bhabha Atomic Research Centre, 400 085 Mumbai, India;(2) Spectroscopy Division, Bhabha Atomic Research Centre, 400 085 Mumbai, India;(3) Inter-University Consortium for DAE Facilities, University Campus, Khandwa Road, 452 001 Indore, India;(4) Crystal Growth Centre, Anna University, 600 025 Madras, India |
| Abstract: | Raman scattering investigation of phase transition in the ferroelectric Ba0.95Ca0.05TiO3 is reported. The results suggest onset of significant dynamic disorder at 105°C. This corroborates findings of recent structural study regarding large positional disorder associated with Ti and O1 atoms well below the tetragonal to cubic transition temperature (∼150°C). |
| Keywords: | Raman scattering phase transition ferroelectric |
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