Crystallographic and magnetic properties of R{sub 3}Co{sub 11}B{sub 4}(R = Y and Gd) compounds
- Polish Academy of Sciences, Poznan (Poland). Inst. of Molecular Physics
The structure and magnetic properties of R{sub 3}Co{sub 11}B{sub 4} compounds, where R = Y and Gd are investigated. X-ray analysis reveals that the R{sub 3}Co{sub 11}B{sub 4} alloys crystallize in the hexagonal Ce{sub 3}Co{sub 11}B{sub 4} 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 J{sub RCo}/k{sub B} = {minus}20.9 K. The properties of these compounds are compared with those of R-Co alloys.
- OSTI ID:
- 37269
- Report Number(s):
- CONF-930860--
- Journal Information:
- IEEE Transactions on Magnetics, Journal Name: IEEE Transactions on Magnetics Journal Issue: 2Pt2 Vol. 30; ISSN IEMGAQ; ISSN 0018-9464
- Country of Publication:
- United States
- Language:
- English
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