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Symmetry changes and domain structures at order-disorder phase transitions EST (TEA)2 B Cl4 compounds (B = Zn, Cu, Hg)

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The discontinuous order-disorder structural instabilities occurring in TEA2BCl4 with B = Zn, Cu, Hg are studied by means of X-ray diffraction, polarized light microscopy, and from the point of view of symmetry. The sequence of phases is clarified but there remains ambiguity concerning symmetry and structure of some phases. Kinetic phenomena and unexpected residual inhomogeneity are observed in paraelastic phases after passing the ferroelastic transition.

OriginalsprogEngelsk
TidsskriftFerroelectrics
Vol/bind190
Udgave nummer1-4
Sider (fra-til)57-63
Antal sider7
ISSN0015-0193
StatusUdgivet - 1 dec. 1997
Eksternt udgivetJa

ID: 209602147