Dielectric and magnetodielectric properties of Bi0.95Tb0.05Fe0.95Co0.05O3 nanoparticles

A. Das, S. De, S. Bandyopadhyay, S. Chatterjee, D. Das

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review


Bi0.95Tb0.05Fe0.95Co0.05O3 (BTFCO) nanoparticles (NPs) have been prepared using a chemical sol-gel method and characterized by x-ray diffraction (XRD), dielectric and magnetodielectric measurements. XRD pattern of the prepared sample shows all crystal planes of BiFeO3 (BFO) confirming successful preparation of the desired NPs. Frequency dependent dielectric constant (ϵr) curves exhibit an enhancement of cr in the BTFCO NPs in comparison with the pristine BFO sample. Frequency dependent imaginary part of electric modulus curves exhibit a peak denoting presence of a relaxation process and activation energy obtained from Arrhenious fitting is found to be 0.34 eV. Variation of magnetocapacitance in presence of magnetic field is stronger in BTFCO in comparison with the pristine BFO and it is a signature of increased magnetoelectric effect in the doped BFO.

Original languageEnglish
Title of host publicationDAE Solid State Physics Symposium 2016
EditorsSurendra Singh, Saibal Basu, Shovit Bhattacharya, Amitabh Das
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735415003
StatePublished - 19 May 2017
Externally publishedYes
Event61st DAE Solid State Physics Symposium - Bhubaneswar, Odisha, India
Duration: 26 Dec 201630 Dec 2016

Publication series

NameAIP Conference Proceedings
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616


Conference61st DAE Solid State Physics Symposium
CityBhubaneswar, Odisha

Bibliographical note

Publisher Copyright:
© 2017 Author(s).


  • Dielectric loss and relaxation
  • Multiferroics
  • Nanocrystalline materials
  • Reactions in sol gels


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