Critical behavior of heat capacity of the SC(NH2)2 ferroelectric in the region of incommensurate phase transition |
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| Authors: | S. N. Kallaev I. K. Kamilov A. M. Aliev Sh. B. Abdulvagidov A. B. Batdalov |
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| Affiliation: | (1) Institute of Physics, Dagestan Scientific Center, Russian Academy of Sciences, ul. 26 Bakinskikh Komissarov 94, Makhachkala, 367003, Russia |
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| Abstract: | The anomalous (nonclassical) behavior of heat capacity in the region of the second-order phase transition “initial phase-incommensurate phase” was experimentally observed in the SC(NH2)2 ferroelectric. Such a critical behavior of heat capacity above and below the temperature of incommensurate phase transition is shown to be qualitatively consistent with the fluctuation theory of XY-type systems. |
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