Ranjan, Rajeev ; Kothai, V. ; Garg, Rohini ; Agrawal, Anupriya ; Senyshyn, Anatoliy ; Boysen, Hans (2009) Degenerate rhombohedral and orthorhombic states in Ca-substituted Na0.5Bi0.5TiO3 Applied Physics Letters, 95 (4). 042904. ISSN 0003-6951
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Official URL: http://doi.org/10.1063/1.3193658
Related URL: http://dx.doi.org/10.1063/1.3193658
Abstract
Neutron powder diffraction and temperature dependent dielectric studies were carried out on Ca-substituted Na0.5Bi0.5TiO3, i.e., (Na0.5Bi0.5)1−xCaxTiO3. Stabilization of an orthorhombic phase even at a low Ca concentration (0.05<x≤0.10) suggests that Na0.5Bi0.5TiO3 (NBT) is susceptible to orthorhombic distortion. The orthorhombic and rhombohedral phases coexist for x=0.10, suggesting these phases to be nearly degenerate. The orthorhombic distortion favoring tendency of Ca assists in promoting the inherent instability with regard to this structure in pure NBT, which was reported recently.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to American Institute of Physics. |
| ID Code: | 123035 |
| Deposited On: | 02 Sep 2021 11:17 |
| Last Modified: | 02 Sep 2021 11:17 |
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