Tripathi, Saurabh ; Kumar, Anil ; Waghmare, Umesh Vasudeo ; Pandey, Dhananjai (2010) Effect of NaNbO3 substitution on the quantum paraelectric behavior of CaTiO3 Physical Review B, 81 (21). 212101_1-212101_4. ISSN 1098-0121
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Official URL: http://prb.aps.org/abstract/PRB/v81/i21/e212101
Related URL: http://dx.doi.org/10.1103/PhysRevB.81.212101
Abstract
Low-temperature dielectric and x-ray diffraction studies on NaNbO3 substituted CaTiO3 reveals suppression of quantum fluctuations, when the concentration of NaNbO3 exceeds 2%. Group-subgroup considerations in conjunction with the knowledge of unstable phonon modes, obtained by first-principles calculations, show that the low-temperature phase is a unique type of ferrielectric phase that exhibits planar antiferroelectric and axial ferroelectric orders.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to American Physical Society. |
| ID Code: | 27226 |
| Deposited On: | 10 Dec 2010 12:55 |
| Last Modified: | 05 Mar 2011 09:08 |
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