Abstract

Mössbauer spectra of Fe(Cr, Al) 2O 4 spinels are reported and interpreted using partial quadrupole splitting theory. Fe 2+ T site quadrupole splittings are calculated for different next-nearest neighbour configurations. Assuming random distribution of the Cr 3+ and Al 3+ in the octahedral M sites, good semiquantitative agreement between calculated and observed quadrupole splittings and absorption intensities is obtained.

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