Paper Title:

Effects of Ambient Pressure on the Structural and Magnetic Properties of Bismuth Ferrite Nanoparticles Prepared by Pulsed Laser Deposition (PLD)

Periodical Materials Science Forum (Volume 722)
Main Theme Functional Nanocomposite Materials
Edited by Shuhui Yu, Rong Sun and Ruxu Du
Pages 53-60
DOI 10.4028/www.scientific.net/MSF.722.53
Citation Ying Bang Yao et al., 2012, Materials Science Forum, 722, 53
Online since June, 2012
Authors Ying Bang Yao, Bei Zhang, Long Chen, Yang Yang
Keywords Bismuth Ferrite, Nanoparticle, PLD
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Abstract

Nanoparticles of bismuth ferrite (BiFeO3) were fabricated by high-pressure pulsed laser deposition method (PLD) on Pt-coated Si substrates. Effects of the ambient oxygen pressure during deposition (from 1 Torr to 15 Torr) were studied with respect to the microstructures and magnetic properties of the samples. It was found that as the pressure is higher than 5 Torr isolated nanoparticles are formed and the size of these nanoparticles decreases with the deposition pressure. All the nanoparticles exhibit ferromagnetic behavior and the magnetic coercive filed decreases with the particle size.