Mössbauer studies on Al-Co ferrites

A. A. Yousif*, M. E. Elzain, H. H. Sutherland, S. H. Salah

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)


Mössbauer spectroscopy studies have been performed on the spinel CoAlxFe2-xO4 (2<-x<-1.7) in the temperature range 77-750 K using either a liquid nitrogen bath cryostat or a furnace. The samples are magnetic at 77 K giving spectra that have magnetic sextets coexisting with a central line which increases in population with the Al-content indicating relaxation effects. The data shows that Al possesses no preference to either tetrahedral or octahedral sites of the ferrite over the whole range of concentration. The Mössbauer hyperfine interaction parameters and magnetic transition temperatures were determined. As expected the hyperfine field and Curie temperature decrease when the Al-content increases.

Original languageEnglish
Pages (from-to)323-327
Number of pages5
JournalHyperfine Interactions
Issue number1-4
Publication statusPublished - Apr 1992

ASJC Scopus subject areas

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


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