2023   04   az   p.03-06 A.R. Imamaliyev, G.F. Ganizade,
Investigation of volt-farad characteristics of barium titanate particles - oleic acid mixture		  pdf 

ABSTRACT

In this work, the dielectric properties of a mixture of 300 nm sized monodisperse barium titanate particles and oleic acid are experimentally investigated. The volt-farad characteristic of the thin film of the mixture shows hysteresis property. The coercive field has a high value (2.5 kV/cm) compared to the bulk barium titanate crystal (1.5 kV/cm). And the value of spontaneous polarization of particles (0.3 μC/cm2) is two orders of magnitude lower than that of the bulk crystal (26 μC/cm2). Explanations of the obtained results on the basis of existing models are given.

Keywords: barium titanate, dielectric hysteresis, spontaneous polarization, submicron particles.
PACS: 77.55.fe, 77.80.Dj, 78.20.Ci

DOI:-

Received: 06.10.2023

AUTHORS & AFFILIATIONS

Institute of Physics Ministry of Science and Education Republic of Azerbaijan, 131 H.Javid ave., Baku, AZ-1143
E-mail: Rahimoglu@mail.ru

Graphics and Images

     

Fig.1-2-3-4

 REFERENCIES

[1]   Yu. Garbovskiy, O. Zribi, A. Glushchenko. Emerging Applications of Ferroelectric Nanoparticles in Materials Technologies, Biology and Medicine. http://dx/doi/org/10.5772/52616
[2]   J. Scott. Ferroelectric Materials for Energy Applications. 2018 Wiley-VCH Verlag GmbH & Co. KGaA, 376 p
[3]   K. Uchino. Ferroelectric devices, CRC Press, 2011, 361 p.
[4]   B. Ertuğ. Overview of Electrical Properties of Barium Titanate. American Journal of Engineering Research (AJER), 2013, v.02, 08, p.01-07
[5]   Y. Reznikov. Ferroelectric Colloids in Liquid Crystals, Liquid Crystals beyond Displays: Chemistry, Physics, and Applications edited by Quan Li, John Wiley & Sons, Inc., Hoboken, New Jersey, 2012, 573 p.
[6]   T.D. Ibragimov, A.R. Imamaliyev, G.M. Bayramov. Influence of barium titanate particles on electro-optic characteristics of liquid crystalline mixture H-37, Optk 2016, v. 127, p. 1217.
[7]   T.D. Ibragimov, A.R. Imamaliyev, G.M. Bayramov. Formation of local electric fields in the ferroelectric BaTiO3 particles-liquid crystal colloid, Ferroelectrics 2016, v. 495, p. 60.
[8]   A.R. Imamaliyev, Sh.A. Humbatov, M.A. Ramazanov. Effect of ferroelectric BaTiO3 particles on the threshold voltage of a smectic A liquid crystal, Beilstein Journal of Nanotech. 2018, v. 9, p. 824.
[9]   G.R. Gorur. Dielectrics in the electric field (CRC Press, Taylor and Francis Group, 2017) 774p
[10]  J. Blakemore. Solid state physics, Cambridge University Press 1985, 517 p.
[11]  J. Yu, J. Chu. Nanocrystalline Barium Titanate, Encyclopedia of Nanoscience and Nanotechnology Edited by H. S. Nalwa, v. 6, p. 389-416.
[12]  P. Sedykh, E. Michel, D. Charnaya, J.Haase. Size Effects in Fine Barium Titanate Particles, Ferroelectrics 2010, v. 400, p. 135.