NDLI: Magnetic Properties of <formula formulatype=inline><tex Notation=TeX>$gamma-{rm Fe}_{2}{rm O}_{3}$</tex> </formula> Nanoparticles at the Verge of Nucleation Process

Content Provider	IEEE Xplore Digital Library
Author	Moscoso-Londono, O. Carriao, M.S. Cosio-Castaneda, C. Bilovol, V. Cohen, R. Nagamine, L.C.C.M. Martinez-Sanchez, R. Lede, E.J. Martinez-Garcia, R. Socolovsky, L.M.
Copyright Year	1965
Abstract	A low-energy new method based in a one-step synthesis at room temperature produces very small maghemite nanoparticles. The fast neutralization reaction (co-precipitation) of a ferric solution (FeCl₃ aqueous) in a basic medium (NH₄OH concentrated) produces an intermediate phase, presumably two-line ferrihydrite, that in oxidizing conditions is transformed to maghemite nanoparticles. That “primordial soup” is characterized by small atom arrangements that are the base for maghemite tiny crystals. The final product of the reaction was characterized by X-ray diffraction, high-resolution transmission electron microscopy, X-ray absorption fine structure, Mössbauer spectroscopy, and magnetometry.
Sponsorship	IEEE Magnetics Society
Starting Page	4555
Ending Page	4558
Page Count	4
File Size	944503
File Format	PDF
ISSN	00189464
Volume Number	49
Issue Number	8
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-08-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Nanoparticles Iron Magnetization Saturation magnetization Temperature measurement Magnetic resonance imaging Magnetic properties X-ray absorption fine structure (XAFS) (EXAFS and XANES) Chemical synthesis ferrihydrite high-resolution transmission electron microscopy (HR-TEM) maghemite Mössbauer spectroscopy oxides
Content Type	Text
Resource Type	Article
Subject	Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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