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Synthesis and ferroelectric properties of multiferroic BiFeO3 nanotube arrays
2005
Applied Physics Letters
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We report the synthesis and characterization of ordered multiferroic BiFeO 3 ͑BFO͒ nanotube arrays. BFO nanotubes with diameters of about 250 nm and lengths of about 6 m were fabricated by means of a sol-gel method utilizing nanochannel alumina templates. After postannealing at 700°C, the BFO nanotubes exhibited a polycrystalline microstructure, and x-ray diffraction and transmission electron microscopy study revealed that they are of a perovskite crystal structure. Significant ferroelectric
doi:10.1063/1.2076437
fatcat:zlnh74g65ncnrcinwk7xpwl45u