Idink, H. ; Srikanth, V. ; White, William B. ; Subbarao, E. C. (1994) Raman study of low temperature phase transitions in bismuth titanate, Bi4Ti3O12 Journal of Applied Physics, 76 (3). pp. 1819-1823. ISSN 0021-8979
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Official URL: http://jap.aip.org/resource/1/japiau/v76/i3/p1819_...
Related URL: http://dx.doi.org/10.1063/1.357700
Abstract
An anomalous line narrowing along with the appearance of several new lines on cooling Bi4Ti3O12 ceramics, indicates a subtle phase transition in the 150-200 K region. In the same temperature range, anomalies in dielectric properties (dielectric constant, coercive field, and spontaneous polarization) of single-crystal Bi4Ti3O12 were reported. A possible subtle monoclinic-orthorhombic phase change, combined with a continuous ordering of dipoles associated with Bi3+ lone pair electrons and TiO6 octahedra, may be responsible for these results.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to American Institute of Physics. |
| Keywords: | Bismuth Oxides; Titanium Oxides; Ternary Compounds; Ferroelectric Materials; Phase Transformations; Temperature Range 65-273 K; Anomalous Properties; Dielectric Function; Coercive Force; Polarization |
| ID Code: | 50449 |
| Deposited On: | 25 Jul 2011 09:49 |
| Last Modified: | 25 Jul 2011 09:49 |
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