Journal
SCRIPTA MATERIALIA
Volume 58, Issue 1, Pages 45-48Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.scriptamat.2007.09.001
Keywords
nanotube; sol-gel; perovskites; magnetic properties; optical properties
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This paper reports the synthesis and characterization of multiferroic BiFeO3 nanotubes. Perovskite BiFeO3 nanotubes with outer diameters 150-190 nm were synthesized by a facile sol-gel template method. The photoabsorption of BiFeO3 nanotubes was characterized by UV-visible diffuse reflectance spectrometry. The BiFeO3 nanotubes show weak ferromagnetism at room temperature, unlike the antiferromagnetic order in bulk BiFeO3, reflecting the grain size-confinement effect on the magnetic ordering of BiFeO3. (C) 2007 Published by Elsevier Ltd. on behalf of Acta Materialia Inc.
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