Mössbauer hyperfine spectra of dilute Fe3+ in synthetic MgAl2O4 spinel

B. L. Dickson*, K. K P Srivastava

*Corresponding author for this work

    Research output: Contribution to journalArticle

    12 Citations (Scopus)

    Abstract

    Mössbauer effect spectra of 57Fe diffused into powdered synthetic spinel, MgAl2O4, exhibit paramagnetic hyperfme structure. The iron was determined to be equally distributed between the tetrahedral and octahedral sites, with the tetrahedrally coordinated iron having a longer spin-lattice relaxation time. Analysis of the spectra taken in small applied fields between 30 and 1000 Oersted at 4.2 and 1.5 K yielded the electronic zero field splitting parameters and showed both sites to have significant departures from axial symmetry.

    Original languageEnglish
    Pages (from-to)447-450
    Number of pages4
    JournalJournal of Physics and Chemistry of Solids
    Volume37
    Issue number5
    DOIs
    Publication statusPublished - 1976

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