Paper Title:
Dielectric Investigations and Theoretical Calculations of Size Effect in Lead Titanate Nanocrystals
  Abstract

In this paper the dielectric properties of nanosize ferroelectric lead titanate crystals are presented. The PbTiO3 samples were prepared by pressing nanopowder into the plates and have been studied experimentally by dielectric permittivity measurements in a wide frequency and temperature range. The obtained TC dependence shows a critical change of behavior with increasing of mean nanoparticle size in a 9 nm region. The theoretical calculations based on Monte Carlo simulation were performed to describe such behavior of this material. It was shown that taking into account distribution of nanoparticle sizes in sample is possible to describe dielectric properties of PbTiO3 nanocrystals rather well.

  Info
Periodical
Materials Science Forum (Volumes 514-516)
Edited by
Paula Maria Vilarinho
Pages
235-239
DOI
10.4028/www.scientific.net/MSF.514-516.235
Citation
R. Grigalaitis, J. Banys, S. Lapinskas, E. Erdem, R. Boettcher, H. J. Glaesel, E. Hartmann, "Dielectric Investigations and Theoretical Calculations of Size Effect in Lead Titanate Nanocrystals ", Materials Science Forum, Vols. 514-516, pp. 235-239, 2006
Online since
May 2006
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Price
$32.00
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