Paper Title:
Experimental Study of Magnetism Dependence on the Grain Size in some Ferreous Magnetic Nanoparticles
  Abstract

The influence of grain size on the magnetism in some ferreous magnetic nanoparticles was studied in experiment. It is found that the γ-Fe2O3 nanoparticles present the superparamagnetism. The coercivity and the remnant magnetization approach to zero. Moreover, the pure nanoparticles γ-Fe2O3 and Fe, under the normal temperature, the specific saturation magnetization decreases along with the grain size reduces. According to the basis magnetic domain structural theory, the grain size of the samples is all below the critical dimension ds.

  Info
Periodical
Advanced Materials Research (Volumes 383-390)
Chapter
Chapter 14: Nanomaterials and Nanomanufacturing
Edited by
Wu Fan
Pages
3817-3822
DOI
10.4028/www.scientific.net/AMR.383-390.3817
Citation
Y. H. Zhu, "Experimental Study of Magnetism Dependence on the Grain Size in some Ferreous Magnetic Nanoparticles", Advanced Materials Research, Vols. 383-390, pp. 3817-3822, 2012
Online since
November 2011
Authors
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Price
$32.00
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