Role of piezoelectricity in dielectric response of Rochelle salt type crystals
Comparing the spontaneous polarizations, static and dynamic dielectric properties of piezoelectric Rochelle salt and non-piezoelectric RbHSO₄ we explore the role played by piezoelectric coupling in forming the dielectric response of the crystals of this type. The calculations for crystals of bot...
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| Date: | 2003 |
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| Main Authors: | , , , |
| Format: | Article |
| Language: | English |
| Published: |
Інститут фізики конденсованих систем НАН України
2003
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| Series: | Condensed Matter Physics |
| Online Access: | http://dspace.nbuv.gov.ua/handle/123456789/120772 |
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| Journal Title: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Cite this: | Role of piezoelectricity in dielectric response of Rochelle salt type crystals / R.R. Levitskii, I.R. Zachek, T.M. Verkholyak, A.P. Moina // Condensed Matter Physics. — 2003. — Т. 6, № 2(34). — С. 261-270. — Бібліогр.: 30 назв. — англ. |
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Digital Library of Periodicals of National Academy of Sciences of Ukraine| Summary: | Comparing the spontaneous polarizations, static and dynamic dielectric
properties of piezoelectric Rochelle salt and non-piezoelectric RbHSO₄
we explore the role played by piezoelectric coupling in forming the dielectric
response of the crystals of this type. The calculations for crystals of
both types are performed within the Mitsui model, modified for the case of
Rochelle salt by including the terms related to piezoelectric coupling with
spontaneous strain ε₄. It is shown that such a modification improves the
agreement between theory and experiment for spontaneous polarization
and yields a correct temperature behavior of relaxation times and dynamic
dielectric permittivity of Rochelle salt in the vicinity of the transition points. |
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