Abstract
The elastic matching of phases in the vicinity of the morphotropic phase boundary in xPbTiO3-(1−x)Pb(Zn1/3Nb2/3)O3 crystals is investigated in an external electric field with strength E ‖ [001]. The field dependences of the unit cell parameters of the monoclinic phase are determined experimentally in the range 0≤E≤2 MV/m. The results obtained are used in analyzing specific features in the electromechanical properties of xPbTiO3-(1−x)Pb(Zn1/3Nb2/3)O3 crystals (0.08≲x≲0.09), in which the monoclinic phase is intermediate between the rhombohedral and tetragonal phases and can coexist with these phases. A correlation between the optimum volume concentrations of domains or twins in different two-phases states is revealed and interpreted for the first time.
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Translated from Fizika Tverdogo Tela, Vol. 44, No. 7, 2002, pp. 1295–1301.
Original Russian Text Copyright © 2002 by Topolov, Turik.
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Topolov, V.Y., Turik, A.V. An intermediate monoclinic phase and electromechanical interactions in xPbTiO3-(1−x)Pb(Zn1/3Nb2/3)O3 crystals. Phys. Solid State 44, 1355–1362 (2002). https://doi.org/10.1134/1.1494636
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DOI: https://doi.org/10.1134/1.1494636