Abstract
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 language | English (US) |
|---|---|
| Pages (from-to) | 3-7 |
| Number of pages | 5 |
| Journal | Ferroelectrics |
| Volume | 400 |
| Issue number | 1 |
| DOIs | |
| State | Published - 2010 |
| Externally published | Yes |
Bibliographical note
Funding Information:This research was sponsored by Virginia Tech’s Institute for Critical Technologies and Applied Sciences (ICTAS) and by AFOSR.
Keywords
- Bismuth ferrite
- ferromagnetic
- multiferroic
- nanoparticles