Dispersion of the polarization processes in Ca 0.32 Ba 0.68 Nb 2 O 6  crystals

O. V. Malyshkina; A. Yu. Eliseev; J. Dec

doi:10.1134/S1063774517010102

Dispersion of the polarization processes in Ca_0.32Ba_0.68Nb₂O₆ crystals

Autores: Malyshkina O.V.¹, Eliseev A.Y.¹, Dec J.²
Afiliações:
1. Tver State University
2. Institute of Materials Science
Edição: Volume 62, Nº 3 (2017)
Páginas: 437-440
Seção: Physical Properties of Crystals
URL: https://journals.rcsi.science/1063-7745/article/view/191018
DOI: https://doi.org/10.1134/S1063774517010102
ID: 191018

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The switching processes in calcium barium niobate crystals CaxBa_1–xNb₂O₆ with x = 0.32 have been investigated. The dielectric hysteresis loops observed in the samples exposed to alternating fields of different frequencies and constant amplitude have been analyzed. It is shown that the loop formation is caused by the sample heating. The sample temperature increases due to the dielectric loss energy release only up to a certain frequency, above which complete switching becomes impossible.