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Elastic properties of lead-free (Na1/2Bi1/2)TiO3-BaTiO3 single crystals near the morphotropic phase boundary as studied by using Brillouin spectroscopy
- Source :
- Journal of the Korean Physical Society. 66:1350-1354
- Publication Year :
- 2015
- Publisher :
- Korean Physical Society, 2015.
-
Abstract
- The elastic properties of lead-free (Na1/2Bi1/2)TiO3-BaTiO3 single crystals near the morphotropic phase boundary were investigated by using Brillouin spectroscopy at room temperature. The measured longitudinal elastic constants of unpoled single crystals with a BaTiO3 content of 5% exhibited large changes depending on the scattering geometry, indicating that a substantial acoustic dispersion effect exists in this system. This was attributed to the relaxor nature due to inherent disorder in the A-site of the perovskite structure.
Details
- ISSN :
- 19768524 and 03744884
- Volume :
- 66
- Database :
- OpenAIRE
- Journal :
- Journal of the Korean Physical Society
- Accession number :
- edsair.doi...........92311b4d02a2a3f8abc381dbafb572e6