Magnetic and structural properties of SmCo6.75-xFexZr0.25 compounds

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

Research output: Contribution to journalArticle

24 Scopus citations

Abstract

Bulk alloys of SmCo6.75-xFexZr0.25, where x = 0, 0.27, 0.41, and 0.54 were prepared by arc-melting. The alloys were characterized by X-ray diffraction, vibrating sample magnetometer, and SQUID magnetometer. X-ray diffraction shows that these compounds form the hexagonal TbCu7-type structure for x<0.67 and for large values of x (x≥0.67) the hexagonal TbCu7-type structure cannot be formed. The lattice parameters (a and c) are dependent on the iron concentration. The unit cell volume is found to increase with x which is due to the larger atomic volume of Fe. X-ray diffraction and magnetization measurements on magnetically aligned samples show that all the samples studied have uniaxial anisotropy. The saturation magnetization increases with x at both room temperature and 5 K. The Curie temperature for these compounds is about 770 °C for all values of x under investigation.

Original languageEnglish (US)
Pages (from-to)295-298
Number of pages4
JournalJournal of Alloys and Compounds
Volume298
Issue number1-2
DOIs
StatePublished - Feb 28 2000

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

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