Dielectric, modulus and impedance analysis of LaF3 nanoparticles

D. Arun Kumar, S. Selvasekarapandian, H. Nithya, A. Sakunthala, M. Hema

Research output: Contribution to journalArticlepeer-review

19 Citations (Scopus)

Abstract

Lanthanum fluoride nanoparticles have been synthesized by the simple method of direct precipitation from an aqueous solution. TG/DTA analysis confirms the sample formation at low temperature (300 °C). Structure of LaF3 nanoparticles has been analyzed by XRD and LaF3 is found to be in tysonite structure. From the XRD spectra the average particle size is found to be 15 nm using the Scherrer formula. The impedance, modulus and dielectric spectra analysis of the prepared LaF3 nanoparticles has been studied using AC impedance spectroscopy. The ionic conductivity of LaF3 nanoparticles is significantly increased by an order from 10-6 to 10-5 S cm-1. The modulus and dielectric spectra analysis confirms the non-Debye type behavior in the material.

Original languageEnglish
Pages (from-to)3803-3807
Number of pages5
JournalPhysica B: Condensed Matter
Volume405
Issue number17
DOIs
Publication statusPublished - 2010 Sep 1
Externally publishedYes

Keywords

  • Chemical synthesis
  • Dielectric properties
  • Electrical properties
  • LaF

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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