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Incipient ferroelectric properties of NaTaO.sub.3./sub
- 1.0377895 - FZÚ 2013 RIV GB eng J - Journal Article
Kamba, Stanislav - Goian, Veronica - Bovtun, Viktor - Nuzhnyy, Dmitry - Kempa, Martin - Spreitzer, M. - König, J. - Suvorov, D.
Incipient ferroelectric properties of NaTaO3
Ferroelectrics. Roč. 426, SI (2012), s. 206-214. ISSN 0015-0193. E-ISSN 1563-5112
R&D Projects: GA ČR(CZ) GA202/09/0682
Institutional research plan: CEZ:AV0Z10100520
Keywords : incipient ferroelectricity * infrared and THz spectroscopy * phonons * microwave ceramics
Subject RIV: BM - Solid Matter Physics ; Magnetism
Impact factor: 0.415, year: 2012
Microwave dielectric permittivity of NaTaO3 ceramics exhibits increase on cooling and saturation at low temperatures, which is typical for incipient ferroelectrics. The tem perature dependence of permittivity was successfully fit with the Barrett formula and explained by polar phonon softening detected in infrared reflectivity and THz transmision spectra.
Permanent Link: http://hdl.handle.net/11104/0209922
Number of the records: 1