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Title
Preparation and photoabsorption characterization of BiFeO3 nanowires
Article in journal
Authors
Feng Gao, Y. Yuan, K. F. Wang, X. Y. Chen, F. Chen, J. -M. Liu
Publication Year
2006
Source
Applied Physics Letters, 2006, (89)10, 102506
Link to Source (DOI)
10.1063/1.2345825
Abstract
<p>Perovskite-type polycrystalline BiFeO3 (BFO) nanowires (similar to 50 nm in diameter and similar to 5 mu m in length) were synthesized using the anodized alumina template technique. An energy band gap of similar to 2.5 eV was determined from the UV-visible diffuse reflectance spectrum, and its photocatalytic ability to produce O-2 was revealed under UV irradiation. Weak ferromagnetism at room temperature and superparamagnetism at low temperature were observed for the BFO nanowires, different from the antiferromagnetic order in bulk BFO, reflecting the significant size effects on the magnetic ordering of BFO. (c) 2006 American Institute of Physics.</p>