Magnetic and structural properties of SmCo7-xCux alloys

I. A. Al-Omari, Y. Yeshurun, J. Zhou, D. J. Sellmyer

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Abstract

We report the structural and magnetic properties of SmCo7-xCux, where x = 0, 0.1, 0.2, 0.3, 0.4, 0.5, and 0.7. X-ray diffraction shows that these alloys from the disordered hexagonal TbCu7-type structure. For large values of x(x≥0.8) the hexagonal TbCu7-type structure cannot be formed. X-ray diffraction on magnetically aligned samples show that these samples have uniaxial anisotropy. The lattice parameters (a and c) are dependent on the Cu concentration, and the unit cell volume is found to increase with x. The saturation magnetization decreases with x at both room temperature and 25 K. The Curie temperature increases with x for small values of x while it decreases with x for large values of x. A maximum value of TC = 852°C is found in these alloys.

Original languageEnglish
Pages (from-to)6710-6712
Number of pages3
JournalJournal of Applied Physics
Volume87
Issue number9 III
Publication statusPublished - May 1 2000

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ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physics and Astronomy (miscellaneous)

Cite this

Al-Omari, I. A., Yeshurun, Y., Zhou, J., & Sellmyer, D. J. (2000). Magnetic and structural properties of SmCo7-xCux alloys. Journal of Applied Physics, 87(9 III), 6710-6712.