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http://dx.doi.org/10.4283/JKMS.2008.18.6.217

Magnetic Properties of Polycrystalline ErFe2O4  

Kim, J. (Department of Physics, Hankuk University of Foreign Studies)
Lee, B.W. (Department of Physics, Hankuk University of Foreign Studies)
Publication Information
Journal of the Korean Magnetics Society / v.18, no.6, 2008 , pp. 217-220 More about this Journal
Abstract
We have investigated the magnetic properties of $ErFe_2O_4$. Stoichiometric polycrystalline sample of $ErFe_2O_4$ was prepared by solid-state reaction method in a stream of CO/$CO_2$ gas. The X-ray power diffraction pattern shows that the diffraction peaks are indexed with respect to the rhombohedral structure with a space group of R3m. The temperature dependent magnetization for $ErFe_2O_4$ shows two-step phase transitions at about 220 and 250 K. The transition at 250 K is an antiferromagnetic transition and that at 220 K is a structural transition.
Keywords
$ErFe_2O_4$; polycrystalline; phase transition; thermoremanent magnetization;
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