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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Official URL: http://pubs.acs.org/doi/abs/10.1021/nl063039w
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.
|Subjects:||Physical Science > Nanophysics|
Physical Science > Nano objects
Physical Science > Nanomagnetics
Material Science > Nanostructured materials
|Deposited By:||Anuj Seth|
|Deposited On:||27 May 2009 12:15|
|Last Modified:||27 May 2009 12:16|
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