Anharmonic polarization of ferroelectric ceramics in alternating field. I. Large damping

• Autorzy: Aleksiejuk M. , Knyazev M. A.
• Języki publikacji: EN

Abstrakty

EN

Polarization of ferroelectric ceramics in an alternating electric field with frequency UJ in a case when damping is large is considered. For the two-type of ions phenomenological model of ferroelectrics which includes only two types of ions of the crystalic lattice, the nonlinear anharmonic equation for polarization is considered. By perturbation method the solution of this equation in the first order in anharmonicity coefficient is constructed. It is shown that an additional oscillations of polarisation with frequency omega/2 and phase shift between real and imaginary components of polarization appeared.

Słowa kluczowe

EN

polarisation; anharmonic polarisation; ferroelectric ceramics; alternating field; damping; large dumping; crystal lattice; nonlinear anharmonic equation; perturbation method; anharmonicity coefficient; phase shift

PL

polaryzacja; polaryzacja anharmoniczna; ceramika ferroelektryczna; pole alternatywne; tłumienie; sieć krystaliczna; równanie anharmoniczne nieliniowe; metoda zaburzeń; współczynnik anharmoniczny; przesunięcie fazy

• Wydawca: Instytut Podstawowych Problemów Techniki PAN
• Czasopismo: Journal of Technical Physics
• Rocznik: 2002
• Tom: Vol. 43, no 3
• Strony: 257--263
• Opis fizyczny: Bibliogr. 9 poz., wykr.

Twórcy

autor

Aleksiejuk M.

• Institute of Fundamental Technological Research, Polish Academy of Sciences, Świętokrzyska 21, Warsaw, Poland

autor

Knyazev M. A.

• Institute of Applied Physics, National Academy of Sciences of Belarus, 16 Akademicheskaya Street, Mińsk 220072, Belarus

Bibliografia

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