Fabrication and Magnetic Properties of Multiferroic BiFeO_3 Nanotube Arrays
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Multiferroic BiFeO<SUB>3</SUB> nanotube arrays have been successfully prepared by means of a sol–gel method utilizing porous anodic alumina templates. The magnetic field and temperature dependencies of magnetizations demonstrate the superparamagnetism behavior with the most sound evidence, which can be attributed to the uncompensated surface spins induced by the size effect.
- Chemistry Letters
Chemistry Letters 36(1), 112-113, 2007-01-05
The Chemical Society of Japan