DocumentCode :
1031806
Title :
Mössbauer study of the oxides layer formed on the surface of acicular iron particles
Author :
Kitahata, S. ; Kishimoto, M. ; Amemiya, M.
Author_Institution :
Hitachi Maxell Ltd., Kyoto, Japan
Volume :
23
Issue :
5
fYear :
1987
fDate :
9/1/1987 12:00:00 AM
Firstpage :
2818
Lastpage :
2819
Abstract :
The structure of the iron oxides layer formed on the surface of acicular iron particles is investigated by means of Mössbauer absorption measurements using a sample of which surface is made of enriched57Fe. The iron oxides layer consists of ferrimagnetic Fe3O4and superparamagnetic Fe3O4at 300 K. The superparamagnetic region of Fe3O4diminishes below about 110 K. The volume ratio of the ferrimagnetic region to the superparamagnetic region of Fe3O4is calculated to be about 7:3 at 300 K.
Keywords :
Magnetic recording; Mossbauer spectroscopy; Absorption; Coercive force; Crystalline materials; Electrons; Ferrimagnetic materials; Hydrogen; Iron; Particle measurements; Saturation magnetization; Spectroscopy;
fLanguage :
English
Journal_Title :
Magnetics, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9464
Type :
jour
DOI :
10.1109/TMAG.1987.1065716
Filename :
1065716
Link To Document :
https://search.ricest.ac.ir/dl/search/defaultta.aspx?DTC=49&DC=1031806
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