A magnetic, neutron diffraction, and Mössbauer spectral study of the Tb2Fe17-xGax solid solutions, with 7 ≤ x ≤ 9

Authors

• O. A. Pringle, Missouri University of Science and Technology
• Gary J. Long, Missouri University of Science and Technology
• S. R. Mishra, Missouri University of Science and Technology
• Dimitri Hautot, Missouri University of Science and Technology
• F. Grandjean, Université de Liège
• D. P. Middleton, Philips Research
• K. H.J. Buschow, Van der Waals-Zeeman Institute
• Z. Hu, University of Missouri
• H. Luo, University of Missouri
• W. B. Yelon, University of Missouri

Abstract

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. © 1998 Elsevier Science B.V. All rights reserved.

Publication Title

Journal of Magnetism and Magnetic Materials

Recommended Citation

Pringle, O., Long, G., Mishra, S., Hautot, D., Grandjean, F., Middleton, D., Buschow, K., Hu, Z., Luo, H., & Yelon, W. (1998). A magnetic, neutron diffraction, and Mössbauer spectral study of the Tb2Fe17-xGax solid solutions, with 7 ≤ x ≤ 9. Journal of Magnetism and Magnetic Materials, 183 (1-2), 81-93. https://doi.org/10.1016/S0304-8853(97)01054-8