A Magnetic, Neutron Diffraction, and Mössbauer Spectral Study of the Tb2Fe17-xGax Solid Solutions, with 7 â¤ x â¤ 9
The compositional dependence of the Curie temperature of the Tb2Fe17-xGax solid solutions shows a primary maximum for x equal to three and a secondary maximum for x equal to eight. The Mössbauer spectra and powder neutron diffraction patterns of Tb2Fe9Ga8 indicate that gallium avoids the 9d site, completely fills the 6c site, and occupies preferentially the 18f site over the 18h site. This gallium preferential substitution leads to a nearly ordered two-dimensional antiferromagnetic arrangement of the terbium and iron magnetic moments, an increase in Curie temperature, and a surprisingly sharp Mössbauer spectrum.
O. A. Pringle and G. J. Long and S. R. Mishra and D. Hautot and F. Grandjean and D. P. Middleton and K. H. Buschow and Z. B. Hu and H. P. Luo and W. B. Yelon, "A Magnetic, Neutron Diffraction, and Mössbauer Spectral Study of the Tb2Fe17-xGax Solid Solutions, with 7 â¤ x â¤ 9," Journal of Magnetism and Magnetic Materials, vol. 183, no. 2016-01-02, pp. 81-93, Elsevier Limited, Mar 1998.
The definitive version is available at https://doi.org/10.1016/S0304-8853(97)01054-8
Keywords and Phrases
Antiferromagnetism; Gallium alloys; Iron alloys; Magnetic materials; Magnetic properties; Mössbauer spectroscopy; Neutron diffraction; Solid solutions; Terbium alloys; Curie temperature; Ferrimagnetism; Antiferromagnetic materials; Mössbauer effect
International Standard Serial Number (ISSN)
Article - Journal
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