Electrical Physical Properties of Nanostructured Ferroelectrics in Pulsed Power Electric Fields

Authors M.M. Rezinkina, O.L. Rezinkin, R.P. Mygushchenko

National Technical University "Kharkiv Polytechnic Institute", 2, Kyrpychov Str., 61002 Kharkiv, Ukraine

Issue Volume 10, Year 2018, Number 2
Dates Received 05 November 2017; published online 29 April 2018
Citation M.M. Rezinkina, O.L. Rezinkin, R.P. Mygushchenko, J. Nano- Electron. Phys. 10 No 2, 02008 (2018)
DOI https://doi.org/10.21272/jnep.10(2).02008
PACS Number(s) 77.84. – s, 77.84.Dy
Keywords Nano-sized powders, Ferroelectric ceramics, Dielectric permittivity, Nonlinear parameters.

Experimental studies of the electrical physical properties of nanostructured ferroelectrics based on barium-strontium titanate in pulsed power electric fields are described. A setup for carrying out such studies, providing application of voltage impulses with sub-microsecond front durations and amplitudes up to 20 kV to samples of ferroelectric ceramics has been elaborated. This setup enables maintenance of the assigned temperature of samples in the range from room temperature to 70 °C. It follows from carried investigations that nanostructured samples made by sintering of fine-grained barium -strontium titanates doped with zirconium powders having grain sizes order of tens of nanometers show bigger values of dielectric permittivity nonlinearity degree at impulse polarization than those made of powders with most of particle sizes greater than microns.

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