Magnetic properties of nanocrystalline FexCu1-x alloys prepared by ball milling

A. Yousif, K. Bouziane, M. E. Elzain, X. Ren, F. J. Berry, H. M. Widatallah, A. Al Rawas, A. Gismelseed, I. A. Al-Omari

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Abstract

X-ray diffraction, Mössbauer and magnetization measurements were used to study FexCu1-x alloys prepared by ball-milling. The X-ray data show the formation of a nanocrystalline Fe-Cu solid solution. The samples with x ≥ 0.8 and x ≤ 0.5 exhibit bcc or fcc phase, respectively. Both the bcc and fcc phases are principally ferromagnetic for x ≥ 0.2, but the sample with x = 0.1 remains paramagnetic down to 78 K. The influence of the local environment on the hyperfine parameters and the local magnetic moment are discussed using calculations based on the discrete-variational method in the local density approximation.

Original languageEnglish
Pages (from-to)213-221
Number of pages9
JournalHyperfine Interactions
Volume156-157
Issue number1-4
Publication statusPublished - Mar 2004

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Keywords

  • bcc phase
  • fcc phase
  • Fe-Cu alloys
  • Magnetism
  • Nanocrystalline

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Nuclear and High Energy Physics
  • Atomic and Molecular Physics, and Optics
  • Physical and Theoretical Chemistry

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