Piezoelectric hysteresis and relaxation processes in ferroelectric ceramics in weak electric fields

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The processes of piezoelectric relaxation and hysteresis in ferroelectric piezoelectric ceramics based on the lead zirconate-titanate system are studied in the region of weak electric fields. An analysis of the field and time dependences of the complex piezoelectric modulus |d31| obtained by processing sequentially measured piezoresonance spectra of the radial vibration mode of thin piezoceramic disks using the piezoresonance spectrum analysis method and program (PRAP) was carried out. A physical interpretation of the results obtained is proposed.

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作者简介

I. Shvetsov

Southern Federal University

Email: anrez@sfedu.ru

Institute of Physics

俄罗斯联邦, 344090, Rostov-on-Don

N. Shvetsova

Southern Federal University

Email: anrez@sfedu.ru

Institute of Physics

俄罗斯联邦, 344090, Rostov-on-Don

E. Petrova

Southern Federal University

Email: anrez@sfedu.ru

Institute of Physics

俄罗斯联邦, 344090, Rostov-on-Don

A. Reznichenko

Southern Federal University

编辑信件的主要联系方式.
Email: anrez@sfedu.ru

Institute of Physics

俄罗斯联邦, 344090, Rostov-on-Don

D. Makarev

Southern Federal University

Email: anrez@sfedu.ru

Institute of Physics

俄罗斯联邦, 344090, Rostov-on-Don

A. Rybyanets

Southern Federal University

Email: anrez@sfedu.ru

Institute of Physics

俄罗斯联邦, 344090, Rostov-on-Don

参考

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2. Fig. 1. Experimental piezoelectric resonance spectrum and PRAP approximation (solid lines) of the radial mode of oscillations of a piezoceramic disk.

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3. Fig. 2. Experimental dependences of the real (a) and imaginary (b) parts of the piezoelectric modulus on the constant electric field E.

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4. Fig. 3. Time dependences of the real (a) and imaginary (b) parts of the piezoelectric module when applying a positive constant electric field E.

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5. Fig. 4. Time dependences of the real (a) and imaginary (b) parts of the piezoelectric module when applying a negative constant electric field E.

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