Ferromagnetism and spin-glass-like behavior of BiFeO3 nanoparticles

J. Zhong, J. J. Heremans, Dwight Viehland, G. T. Yee, S. Priya

Research output: Contribution to journalArticlepeer-review

7 Scopus citations


BiFeO3 (BFO) nanoparticles were synthesized by the sol-gel method. X-ray diffraction and energy dispersive X-ray spectroscopy indicate no secondary phases are present, and the composition of the BiFeO3 nanoparticles was stoichiometric. Magnetic measurements show that the BiFeO 3 nanoparticles exhibit ferromagnetism with spin-glass-like behavior. The results were found to be related to size effects, which partially destroy the long-wavelength cycloid spin structure, and which induce ferromagnetism and spin-glass-like behavior due to diffusion of domain walls and pinning at the nanoparticle surface.

Original languageEnglish (US)
Pages (from-to)3-7
Number of pages5
Issue number1
StatePublished - 2010
Externally publishedYes

Bibliographical note

Funding Information:
This research was sponsored by Virginia Tech’s Institute for Critical Technologies and Applied Sciences (ICTAS) and by AFOSR.


  • Bismuth ferrite
  • ferromagnetic
  • multiferroic
  • nanoparticles


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