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2000 | 98 | 1-2 | 61-70
Article title

Dilatometric Investigations of Overcritical Behaviour in [N(C_{2}H_{5})_{4}]_{2}CuCl_{4} Crystals

Content
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Languages of publication
EN
Abstracts
EN
The results of experimental investigation of thermal expansion of [N(C_{2}H_{5})_{4}]_{2}CuCl_{4} crystals in a wide temperature range are presented. The anomaly of thermal deformation typical of first order phase transition at 258 K and additional continuous anomaly at 195 K were observed. It was shown that low temperature anomalies of physical properties of [N(C_{2}H_{5})_{4}]_{2}CuCl_{4} crystals can be described as overcritical trace of isomorphous phase transitions. Results of numerical analysis of phenomenological model of improper ferroelastic exhibiting isomorphous phase transitions are presented and compared with experimentally determined temperature dependencies of spontaneous deformation of [N(C_{2}H_{5})_{4}]_{2}Cu Cl_{4} crystals.
Keywords
EN
Publisher

Year
Volume
98
Issue
1-2
Pages
61-70
Physical description
Dates
published
2000-07
received
2000-02-23
Contributors
author
  • Institute of Physics, Wrocław University of Technology Wybrzeze Wyspiańskiego 27, 50-370 Wrocław, Poland
author
  • Computer Science Department, Wrocław University of Technology Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland
author
  • Institute of Physics, Wrocław University of Technology Wybrzeze Wyspiańskiego 27, 50-370 Wrocław, Poland
References
Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv98z107kz
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