Effect of Mn concentration on the spin glass transition temperature of Fe0.70-xMnxAl0.30 alloys

K. A. Azez*, M. K. Hasan, I. A. Al-Omari

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


Magnetization measurements on zero field cooled (ZFC) and field cooled (FC) samples as a function of temperature where made on Fe0.70-xMn xAl0.30 alloys with 0≤x≤0.10. Our data show the existence of two regimes of the spin glass temperature Tf when increasing the concentration x of the Mn atoms. We found that Tf decreases slowly with increasing x up to x=0.06 and then shows a rapid linear decrease above this concentration. The existence of two regimes of T f behavior with x may be attributed to the disappearance of ferromagnetic clusters which exist for low values of x (x<0.06). Compared to the Mn-free alloy, the relative changes in Tf are bigger and exceed 40% at x=0.10. The second regime (x>0.06) is associated with more influence of x on Tf.

Original languageEnglish
Pages (from-to)69-71
Number of pages3
JournalJournal of Alloys and Compounds
Issue number1-2
Publication statusPublished - Oct 6 2003
Externally publishedYes


  • Magnetic measurements
  • Magnetically ordered compounds
  • Spin glasses
  • Transition metal compounds

ASJC Scopus subject areas

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


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