Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1596042 | Solid State Communications | 2006 | 5 Pages |
Abstract
The magnetic properties of Y 2Co7âxFexB3 for 0.5â¤xâ¤2 have been investigated using 57Fe Mössbauer spectroscopy at room temperature. These compounds have the hexagonal Ce2Co7B3 type of structure. From the Mössbauer spectra, the Y 2Co7âxFexB3 compounds are paramagnetic for x=0.5 and ferromagnetic for 1â¤xâ¤2 at room temperature. The Fe atoms substitute for Co atoms at the 2c site preferentially and avoid Co atoms at the 6i2 site. The 57Fe hyperfine fields at each site increased for Y 2Co7âxFexB3 with increasing Fe content. In Y 2Co6FeB3 the Fe moments at the 2c, 6i1 and 6i2 sites are 1.33, 0.87 and 0 μB, respectively. It is shown that the Fe atom at the 6i2 site has no moment from the Mössbauer study. The weighted average values of the isomer shift decrease for Y 2Co7âxFexB3 with increasing Fe content.
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Physical Sciences and Engineering
Materials Science
Materials Science (General)
Authors
Fumio Maruyama, Yasushi Amako,