Electronic structure of magnetite at low temperature

S. Iida, K. Mizushima, M. Mizoguchi, S. Umemura, J. Yoshida

Research output: Contribution to journalArticlepeer-review

18 Citations (Scopus)

Abstract

Recent progress in NMR analysis of Fe3O4 has revealed the presence of five B site Fe3+ ions, called B-1, B-2, B-4 and B-5. From the symmetry of the NMR lines of these ions, a very new electron ordering was proposed, in which Fe3+-I ions make pairs along [11̄0] direction and Fe2+-II ions also behave in the same way. In this Mizoguchi's model, all the (001) planes in which B sites align along [11̄0] are composed of these pairs exclusively with two kinds of pairs aligning alternately. The other (001) planes in which B sites align along [011] are composed of Fe3+-II and Fe2+-I ions, which align as 3·1·3··· and 1·3·1· ··. The significance of this model in contrast to Iida's model in which all (001) planes have the same alternative sequence of Fe3+ and Fe2+ ions is discussed, concluding that, although the new model is quite promising, the NMR study at the present stage still cannot eliminate the latter model.

Original languageEnglish
Pages (from-to)1455-1457
Number of pages3
JournalJournal of Applied Physics
Volume49
Issue number3
DOIs
Publication statusPublished - 1978

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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