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Phonon confinement and particle size effect on the low-frequency Raman mode of aurivillius phase Bi(4)Ti(3)O(12) powders
We report the systematic measurements in bismuth titanate powders of Raman frequency shift, ω and full width at half maximum (FWHM), Γ of optical phonons at q = 0 obtained between ∼300 K and 673 K in air. Both the particle size and phonon confinement effects are reasonably satisfactory to explain th...
| Autores principales: | , , |
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| Formato: | Online Artículo Texto |
| Lenguaje: | English |
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The Royal Society of Chemistry
2023
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| Materias: | |
| Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9906980/ https://www.ncbi.nlm.nih.gov/pubmed/36762079 http://dx.doi.org/10.1039/d2ra06297f |