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Effect of Y-doping on the electrical transport properties of nanocrystalline BiFeO 3

  • A. Mukherjee
  • , S. Basu
  • , G. Chakraborty
  • , M. Pal

Research output: Contribution to journalArticlepeer-review

63 Scopus citations

Abstract

Effect of yttrium doping on the electrical transport properties of sol-gel prepare nanocrystalline BiFeO 3 was investigated. A comprehensive state-of-the art sophisticated instruments like x-ray diffraction, differential thermal analyzer, field emission scanning electron microscope, and HRTEM were utilized to characterize the BiFeO 3 nanoparticles. It was observed that the values of dc activation energy calculated from Arrhenius relation increase with increase of yttrium content. The variation of ac conductivity with frequency and temperature exhibits a correlated barrier hopping conduction mechanism. The dielectric permittivity of the sample reveals an increasing tendency with the concentration of yttrium and depends on both the grain and the interfacial grain boundary resistance. The activation energies for the dielectric relaxation estimated from the modulus spectra were found to be reasonably good agreement with those obtained from dc conductivity study.

Original languageEnglish
Article number014321
JournalJournal of Applied Physics
Volume112
Issue number1
DOIs
StatePublished - 1 Jul 2012
Externally publishedYes

Bibliographical note

Funding Information:
The authors would like to acknowledge financial support from the Department of Science and Technology (DST), Government of India (Project No. SR/FTP/PS-66/2008). The authors also like to acknowledge the financial support from BRNS (Project No. 2011/37P/14/BRNS), Department of Atomic Energy (DAE), Government of India.

Funding

The authors would like to acknowledge financial support from the Department of Science and Technology (DST), Government of India (Project No. SR/FTP/PS-66/2008). The authors also like to acknowledge the financial support from BRNS (Project No. 2011/37P/14/BRNS), Department of Atomic Energy (DAE), Government of India.

FundersFunder number
Department of Science and Technology, Ministry of Science and Technology, India2011/37P/14/BRNS, SR/FTP/PS-66/2008
Department of Atomic Energy, Government of India

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