Longitudinal-electric-field influence on Rochelle salt crystals

The influence of the longitudinal electric field on the static and dynamic dielectric, elastic, piezoelectric characteristics of Rochelle salt, as well as sound attenuation, is studied within the two‐sublattice Mitsui model taking into account the piezoelectric coupling. A satisfactory agreement wit...

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Bibliographic Details
Published in:Physica Status Solidi (b) 2007-07, Vol.244 (7), p.2641-2656
Main Authors: Moina, A. P., Slivka, A. G., Kedyulich, V. M.
Format: Article
Language:English
Subjects:
62.65.+k
77.22.Ch
77.22.Jp
77.65.−j
77.80.Bh
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Dielectric properties of solids and liquids
Dielectrics, piezoelectrics, and ferroelectrics and their properties
Exact sciences and technology
Physics
Piezoelectricity and electromechanical effects
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Summary:The influence of the longitudinal electric field on the static and dynamic dielectric, elastic, piezoelectric characteristics of Rochelle salt, as well as sound attenuation, is studied within the two‐sublattice Mitsui model taking into account the piezoelectric coupling. A satisfactory agreement with experimental data is obtained for the field effect on the static dielectric permittivity near the lower Curie temperature. At the upper Curie temperature an effective field should be used in calculations to describe the experiment. A possible role of space‐charge build‐up in screening of the external field at high temperatures is discussed. (© 2007 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
ISSN:0370-1972
1521-3951
DOI:10.1002/pssb.200541436