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2015 | 127 | 3 | 791-794
Article title

Phase Transitions and Fundamental Ferroelectric Dispersion in DMAAl_{1-x}Cr_{x}S Crystals

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Abstracts
EN
This paper presents the results of investigations of the temperature dependence of heat capacity and dielectric dispersion in the vicinity of ferroelectric-ferroelastic phase transition of dimethylammonium metal sulphate hexahydrate crystals DMAAl_{1-x}Cr_{x}S. In particular, it is shown that the isomorphous substitution of metal ion noticeably changes the temperature of phase transition and parameters of the fundamental ferroelectric dispersion observed around T_{c1}. These changes are explained in terms of clusters sizes and dynamics in the framework of order-disorder type phase transition mechanism.
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Contributors
  • Physical Department and Scientific-Technical and Educational Center of Low-Temperature Studies, Ivan Franko National University of Lviv, Dragomanova 50, UA-79005 Lviv, Ukraine
  • Physical Department, Ivan Franko National University of Lviv, Dragomanova 50, UA-79005 Lviv, Ukraine
author
  • Institute of Experimental Physics, University of Wrocław, pl. M. Borna 9, 50-204 Wrocław, Poland
author
  • Institute of Experimental Physics, University of Wrocław, pl. M. Borna 9, 50-204 Wrocław, Poland
author
  • Faculty of Chemistry, University of Wrocław, F. Joliot-Curie 14, 50-383 Wrocław, Poland
author
  • Scientific-Technical and Educational Center of Low-Temperature Studies, Ivan Franko National University of Lviv, Dragomanova 50, UA-79005 Lviv, Ukraine
author
  • Scientific-Technical and Educational Center of Low-Temperature Studies, Ivan Franko National University of Lviv, Dragomanova 50, UA-79005 Lviv, Ukraine
author
  • Scientific-Technical and Educational Center of Low-Temperature Studies, Ivan Franko National University of Lviv, Dragomanova 50, UA-79005 Lviv, Ukraine
author
  • Physical Department, Ivan Franko National University of Lviv, Dragomanova 50, UA-79005 Lviv, Ukraine
References
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  • [8] J.C. Burfoot, Ferroelectrics. An introduction to the Physical Principles, Princeton, New Jersey 1967
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Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv127n325kz
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