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DC electrical resistivity and magnetic property of single-phase α-Fe2O3 nanopowder synthesized by a simple chemical method
P.P. Sarangi, , M.K. Patra, C. Prakash, N.N. Ghosh
Published in
2009
Volume: 92
   
Issue: 10
Pages: 2425 - 2428
Abstract
Nanocrystalline pure α-Fe2O3 powder, with an average particle size of 35 nm, has been synthesized by using an aqueous solution-based synthetic route. DC electrical resistivity of the synthesized material was measured with respect to temperature by the two-probe method from 28° to 225°C. Room temperature resistivity of the nanopowder was ∼108 Ω·cm. Magnetic hysteresis measurement revealed that the synthesized α-Fe2O3 nanopowder exhibited ferromagnetic behavior at room temperature. The hysteretic features are high saturation magnetization of 5.1 emu/g, high remanence of 2.2 emu/g, and coercivity of 200.5 Oe. © 2009 The American Ceramic Society.
About the journal
JournalJournal of the American Ceramic Society
ISSN00027820