Piezoelectric hysteresis in ferroelectric ceramics in a weak electric field

Abstract

In this work, we studied the piezoelectric hysteresis effect induced by a weak dc electric field in ferroelectric ceramics. Precision measurements of the impedance spectra for the thickness vibrational mode of thin piezoceramic disks at different polarities of applied dc electric field were performed using the method and program of piezoelectric resonance analysis (PRAP). The field dependences of the complex piezoelectric constants of piezoelectric ceramics obtained by processing successively measured impedance spectra were analyzed and a physical interpretation of the results was proposed.

Keywords:

• Ferroelectric ceramics
• piezoelectric hysteresis
• domain orientation processes
• complex piezoelectric constants
• thickness extensional mode
• piezoelectric resonance analysis method

Additional information

Funding

The study was financially supported by the Ministry of Science and Higher Education of the Russian Federation (State task in the field of scientific activity, 2023).