DocumentCode
857805
Title
Mossbauer studies of colloidal ultrafine particles of iron
Author
Furubayashi, T. ; Nakatani, I.
Author_Institution
Nat. Res. Inst. for Metals, Tokyo, Japan
Volume
26
Issue
5
fYear
1990
fDate
9/1/1990 12:00:00 AM
Firstpage
1855
Lastpage
1857
Abstract
Mossbauer studies of ultrafine particles of iron are reported. The particles have an average diameter of 2 nm and are dispersed in oil by a surface-active agent. The Mossbauer spectrum at 4.2 K consisted of a ferromagnetic and a paramagnetic component. The paramagnetic component was shown to disappear when the sample was kept at room temperature. It is concluded that particles having diameters less than a certain value are paramagnetic
Keywords
Mossbauer effect; iron; magnetic fluids; magnetic properties of fine particles; particle size; 2 nm; 4.2 K; Fe particles; Mossbauer spectrum; Mossbauer studies; colloidal ultrafine particles; ferromagnetic component; oil; paramagnetic component; surface-active agent; Hydrocarbons; Iron; Magnetic field measurement; Magnetic liquids; Magnetic properties; Magnetization; Paramagnetic materials; Petroleum; Spectroscopy; Temperature;
fLanguage
English
Journal_Title
Magnetics, IEEE Transactions on
Publisher
ieee
ISSN
0018-9464
Type
jour
DOI
10.1109/20.104547
Filename
104547
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