Hyperfine Interactions

, Volume 156, Issue 1–4, pp 213–221

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
Article
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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.

Fe–Cu alloys nanocrystalline bcc phase fcc phase magnetism 

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Copyright information

© Kluwer Academic Publishers 2004

Authors and Affiliations

  • A. Yousif
    • 1
  • K. Bouziane
    • 1
  • M. E. Elzain
    • 1
  • X. Ren
    • 2
  • F. J. Berry
    • 2
  • H. M. Widatallah
    • 3
  • A. Al Rawas
    • 1
  • A. Gismelseed
    • 1
  • I. A. Al-Omari
    • 1
  1. 1.Physics Department, College of ScienceSultan Qaboos UniversityMuscatSultanate of Oman
  2. 2.Department of ChemistryThe Open UniversityMilton KeynesUK
  3. 3.Institute of Nuclear ResearchSudan Atomic Energy CommissionKhartoumSudan

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