DocumentCode
1030117
Title
Magnetic and Mössbauer study on Nd2 (Fe1-x Cox )14 B compound
Author
Matsui, Masaaki ; Doi, Masaaki ; Shimizu, Toshifumi
Author_Institution
Nagoya University, Nagoya, Japan
Volume
23
Issue
5
fYear
1987
fDate
9/1/1987 12:00:00 AM
Firstpage
3113
Lastpage
3115
Abstract
The saturation magnetization of Nd2 (Fe1-x Cox )14 B Ms (x) measured up to 32T by the pulse field method shows a maximum around x=0. 1. The behavior is explained by the rigid band model. The temperature dependence of Mössbauer spectrum for Nd2 Fe14 B is analyzed by taking line width and intensity ratio of six subspectra as constant values and hyperfine parameters for Nd2 Fe14 B are obtained. Utilizing Ms (x) and hyperflne parameters for Nd2 Fe14 B at R.T., the Mössbauer spectra for x=0.3 and 0.4 are analyzed by the random substitution model of Co for Fe in Nd2 (Fe1-x Cox )14 B. The analysis suggests that each k1 , k2 , j1 and j2 site has a maximum in the dependence of Hhf (n) on the number of nearest neighbor Fe atoms n, while each c and e site has monotonical decrease of Hhf (n).
Keywords
Mossbauer spectroscopy; Permanent magnet materials; Atomic measurements; Diffraction; Iron; Magnetic field measurement; Magnetic properties; Neodymium; Neutrons; Permanent magnets; Powders; Saturation magnetization;
fLanguage
English
Journal_Title
Magnetics, IEEE Transactions on
Publisher
ieee
ISSN
0018-9464
Type
jour
DOI
10.1109/TMAG.1987.1065560
Filename
1065560
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