Investigation of the dielectric properties and thermal expansion of the ferroelectric ceramic PKR-1 in the phase-transition region |
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Authors: | S N Kallaev G G Gadzhiev I K Kamilov A R Bilalov Z M Omarov S A Sadykov |
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Institution: | (1) Institute of Physics, Dagestan Scientific Center, Russian Academy of Sciences, ul. M. Yaragy 94, Makhachkala, 367003, Russia |
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Abstract: | The permittivity and thermal expansion of polarized and unpolarized samples of the ferroelectric ceramic PKR-1 have been investigated in the temperature range 300–700 K. Anomalous behavior of the thermal expansion coefficient is found in the range of ferroelectric phase transitions. The results obtained are analyzed taking into account the specific features of the structure of polar ceramics. |
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