Nano Archive

Size-dependent magnetic properties of single-crystalline multiferroic BiFeO3 nanoparticles

Park, Tae-Jin and Papaefthymiou, Georgia C. and Viescas, Arthur J. and Moodenbaugh, Arnold R. and Wong, Stanislaus S. (2007) Size-dependent magnetic properties of single-crystalline multiferroic BiFeO3 nanoparticles. NANO LETTERS, 7 (3). pp. 766-772.

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As-prepared, single-crystalline bismuth ferrite nanoparticles show strong size-dependent magnetic properties that correlate with: (a) increased suppression of the known spiral spin structure (period length of 62 nm) with decreasing nanoparticle size and (b) uncompensated spins and strain anisotropies at the surface. Zero-field-cooled and field-cooled magnetization curves exhibit spin-glass freezing behavior due to a complex interplay between finite size effects, interparticle interactions, and a random distribution of anisotropy axes in our nanoparticle assemblies.

Item Type:Article
Subjects:Physical Science > Nanophysics
Physical Science > Nano objects
Physical Science > Nanomagnetics
Material Science > Nanostructured materials
ID Code:2605
Deposited By:Anuj Seth
Deposited On:27 May 2009 12:15
Last Modified:27 May 2009 12:16

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