Cation distribution in nickel manganese oxide

S. L. Cheng, J. G. Lin, K. M. Kuo, Gung Chern

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104 Scopus citations


We use the technique of electron spin resonance (ESR) to analyze the distribution of cations in Mn 3-xNi xO 4with x = 0-1. ESR data suggest that Ni 2+ ions prefer to occupy octahedral-sites (B-sites) at low doping and concurrently produce a Mn 4+ ion in B-site. As Ni 2+ ions reach a critical value of 0.5, partial tetrahedral-sites are replaced by Mn 3+ ions and form inverse spinel. Continually adding the Ni content up to x ∼ 1 results into a full transformation of structure into inverse spinel, which is accompanied with a drop of ESR intensities.

Original languageEnglish
Article number07A321
JournalJournal of Applied Physics
Issue number7
StatePublished - 1 Apr 2012


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