Features of the structural and magnetic properties of Pb(TixZr1–xO3)-NiFe1.98Co0.02O4 in the polarized state

Baev, Vadim; Budzyński, Mieczysław; Laletin, Vladimir; Mitsiuk, Victor; Poddubnaya, Natali; Surowiec, Zbigniew; Yanushkevich, Kazimir

doi:10.1515/nuka-2017-0012

Abstract

Composites with a 90%Pb(Ti_xZr_1-xO₃)-10%NiFe_1.98Co_0.02O₄ composition have been synthesized. It has been established that the polarization of samples resulting from exposure to an electric field for 1 hour of 4 kV/mm in strength at a temperature of 400 K leads to crystal structure deformation. The compression of elementary crystal cells in some areas during polarization of the sample creates conditions suitable for the enhancement of magnetic exchange interactions. It has been found that the polarization process of such compositions leads to increases in specific magnetization and magnetic susceptibility. The analysis of Mössbauer spectra has shown that the polarization of the 90%Pb(Ti_xZr_1-xO₃)-10%NiFe_1.98Co_0.02O₄ composite leads to significant changes in the effective magnetic fields of iron subspectra in various positions.

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Features of the structural and magnetic properties of Pb(TixZr1–xO3)-NiFe1.98Co0.02O4 in the polarized state

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