Piezoelectric Properties of Ferroelectric SbSBr Crystal

The contribution of soft mode at Sb atom's site to the temperature dependences of Sb atom's equilibrium position's difference Δz 33 (T) has been studied theoretically, when SbSBr crystal is deformed in direction of c(z)-axis in paraelectric and in ferroelectric phases. The largest cha...

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Bibliographic Details
Published in:Ferroelectrics 2013-01, Vol.445 (1), p.107-113
Main Authors: Audzijonis, A., Žigas, L., Kvedaravičius, A.
Format: Article
Language:English
Subjects:
anharmonicity
Antimony
Crystals
Electric properties
Ferroelectric materials
Ferroelectricity
Ferroelectrics
phase transition
Phase transitions
Phases
piezoelectric modulus
Piezoelectricity
SbSBr crystal
Soft mode
Temperature
Temperature dependence
Transition temperature
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Summary:The contribution of soft mode at Sb atom's site to the temperature dependences of Sb atom's equilibrium position's difference Δz 33 (T) has been studied theoretically, when SbSBr crystal is deformed in direction of c(z)-axis in paraelectric and in ferroelectric phases. The largest change of Δz 33 (T) occurs in the ferroelectric phase near the transition temperature T C = 21 K. The temperature dependence of Sb atom's equilibrium position's displacements Δz 33 is very similar to the temperature dependence of experimental piezoelectric modulus of SbSBr crystal in ferroelectric phase.
ISSN:0015-0193
1563-5112
DOI:10.1080/00150193.2013.814478