Ferroelectric Q and antiferroelectric P phases' coexistence and local phase transitions in oxygen‐deficient NaNbO 3  single crystal: micro‐Raman, dielectric and dilatometric studies | Zendy

Shakhovoy R. A. | Zendy; Raevskaya S. I. | Zendy; Shakhovaya L. A. | Zendy; Suzdalev D. V. | Zendy; Raevski I. P. | Zendy; Yuzyuk Yu. I. | Zendy; Semenchev A. F. | Zendy; El Marssi M. | Zendy

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Ferroelectric Q and antiferroelectric P phases' coexistence and local phase transitions in oxygen‐deficient NaNbO 3 single crystal: micro‐Raman, dielectric and dilatometric studies

Author(s) -

Shakhovoy R. A.,

Raevskaya S. I.,

Shakhovaya L. A.,

Suzdalev D. V.,

Raevski I. P.,

Yuzyuk Yu. I.,

Semenchev A. F.,

El Marssi M.

Publication year - 2012

Publication title -

journal of raman spectroscopy

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.748

H-Index - 110

eISSN - 1097-4555

pISSN - 0377-0486

DOI - 10.1002/jrs.3140

Subject(s) - antiferroelectricity , raman spectroscopy , ferroelectricity , dielectric , phase transition , phase (matter) , materials science , oxygen , single crystal , chemistry , crystallography , analytical chemistry (journal) , condensed matter physics , optics , optoelectronics , physics , organic chemistry

Micro‐Raman studies of oxygen‐deficient gray‐colored NaNbO 3 single crystals have shown that at room temperature both antiferroelectric P and ferroelectric Q phases are present simultaneously as separate regions tens of micrometers in size. Phase transitions in P and Q regions have been elucidated by dielectric, dilatometric and micro‐Raman studies. For the first time, the sequence of phase transitions between antiferroelectric phase P and ferroelectric Q and N phases has been revealed. Copyright © 2012 John Wiley & Sons, Ltd.

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