Relaxation processes in the incommensurate phase of a crystal with defects |
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Authors: | S. N. Kallaev I. K. Kamilov |
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Affiliation: | (1) Institute of Physics, Dagestan Science Center of the Russian Academy of Sciences, 367003 Makhachkala, Russia |
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Abstract: | The nature of the relaxation of the incommensurate superstructure of a ferroelectric to the equilibrium state is investigated experimentally. It is shown that near a phase transition the temperature dependence of the relaxation time of the incommensurate phase of the defective crystal is exponential. This law agrees qualitatively with the notion of domain wall motion in an inhomogeneous medium containing “random local phase-transition temperature” type defects. Fiz. Tverd. Tela (St. Petersburg) 41, 513–515 (March 1999) |
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