Abstract
The elastic interaction of paraelastic-paraelectric (¯42m) and ferroelastic-improper ferroelectric (mm2) phases coexisting in a Gd2 (MoO4)3 crystal is investigated for a phase transition in the neighborhood of Tc=433 K. The energetic favorability of the monodomain state of the ferroelastic phase being formed is shown and the reasons for the impossibility of reaching the plane of zero mean strains on the phase interface boundary are analyzed.
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Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 3, pp. 68–72, March, 1990.
The authors are grateful to I. M. Vitebskii for useful discussion and valuable remarks.
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Topolov, V.Y., Turik, A.V. Features of elastic phase interaction in the crystal Gd2(MoO4)3 . Soviet Physics Journal 33, 260–263 (1990). https://doi.org/10.1007/BF00895965
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DOI: https://doi.org/10.1007/BF00895965