DocumentCode
1153818
Title
Crystallographic and magnetic properties of R3Co11 B4(R=Y and Gd) compounds
Author
Kowalczyk, Andrzej ; Stefanski, P.
Author_Institution
Inst. of Molecular Phys., Acad. of Sci., Poznan, Poland
Volume
30
Issue
2
fYear
1994
fDate
3/1/1994 12:00:00 AM
Firstpage
648
Lastpage
650
Abstract
The structure and magnetic properties of R3Co11 B4 compounds, where R=Y and Gd are investigated. X-ray analysis reveals that the R3Co11B4 alloys crystallize in the hexagonal Ce3Co11B4 structure. The unit cell of the structure contains 18 atoms. The rare earth atoms are distributed in two different crystallographic sites, the Co atoms in three different positions and B is located in one type of site. The lattice constants, Curie temperature and saturation magnetization at 4.2 K are determined. The mean field approximation yields a 4f-3d exchange integral of JRCo/kB=-20.9 K. The properties of these compounds are compared with those of R-Co alloys
Keywords
Curie temperature; boron alloys; cobalt alloys; crystal atomic structure of alloys; exchange interactions (electron); gadolinium alloys; magnetisation; yttrium alloys; 4.2 K; 4f-3d exchange integral; Curie temperature; Gd3Co11B4; X-ray diffraction; Y3Co11B4; hexagonal Ce3Co11B4 structure; lattice constants; mean field approximation; saturation magnetization; Anisotropic magnetoresistance; Crystallization; Crystallography; Lattices; Magnetic anisotropy; Magnetic materials; Magnetic properties; Perpendicular magnetic anisotropy; Saturation magnetization; Temperature;
fLanguage
English
Journal_Title
Magnetics, IEEE Transactions on
Publisher
ieee
ISSN
0018-9464
Type
jour
DOI
10.1109/20.312364
Filename
312364
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