Ranjan, Rajeev ; Hackl, Rudi ; Chandra, Amreesh ; Schmidbauer, Elmar ; Trots, Dmytro ; Boysen, Hans (2007) High-temperature relaxor ferroelectric behavior in Pr-doped SrTiO3 Physical Review B: Condensed Matter and Materials Physics, 76 (22). ISSN 1098-0121
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Official URL: http://doi.org/10.1103/PhysRevB.76.224109
Related URL: http://dx.doi.org/10.1103/PhysRevB.76.224109
Abstract
Temperature-dependent Raman scattering, dielectric, and powder x-ray diffraction studies have been carried out on Pr-doped Sr TiO3 ceramic samples. Activation of TO2 and TO4 polar modes indicated increasing degree of polar distortion by Pr doping. Dielectric measurements revealed that the system exhibits dielectric relaxation peaks at ∼ 500K . The softening tendency of the polar TO1 soft mode decreases with increasing Pr doping. X-ray diffraction results show no evidence of symmetry breaking across the dielectric peak temperatures. The system exhibits features of high-temperature relaxor ferroelectrics.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to American Physical Society. |
| ID Code: | 123044 |
| Deposited On: | 02 Sep 2021 12:10 |
| Last Modified: | 02 Sep 2021 12:10 |
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