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Synthesis of α-Fe2O3 Nanowires and its Magnetic Properties

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Abstract:

a-Fe2O3 nanowire was successfully synthesized by oxidation of pure iron. The as-synthesized a-Fe2O3 nanowire arrayed normal to the surface of the substrate, were perfect single crystals with diameters of 20 to 40 nm and lengths varying from 2 to 5 µm. The magnetic property of the nanowires was studied, and some interesting phenomena were observed. The magnetic moment of the nanowire shows an antiferromagnetic behavior at high temperature and a weakly ferromagnetic behavior at low temperature. The block temperature of the a-Fe2O3 nanowire was found to be significantly higher than that of a-Fe2O3 nanoparticle.

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Periodical:

Journal of Metastable and Nanocrystalline Materials (Volume 23)

Pages:

243-246

DOI:

https://doi.org/10.4028/www.scientific.net/JMNM.23.243

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Online since:

January 2005

Authors:

Y.W. Liu, X.F. Rui, Y.Y. Fu, Han Zhang

Keywords:

Fe2O3, Magnetic Property, Nanowire

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© 2005 Trans Tech Publications Ltd. All Rights Reserved

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