Effect of Mn-substitution on magnetic and structural properties in FeCr2O4

T. Arima, Y. Watanabe, K. Taniguchi, M. Watanabe, Y. Noda

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

We studied the magnetism and crystal structure of Fe1 - x Mnx Cr2 O4 solid solutions to explore the interplay between the orbital and spin degrees of freedom in the spinel oxide system. Cooperative Jahn-Teller transition temperature decreases with partial substitution of Mn2 + for Fe2 +, because a Mn2 + ion in the high-spin state (e2 t3) has no orbital degree of freedom. In the partially substituted compounds, the ferrimagnetic transition induces the second structural transition from tetragonal to orthorhombic system, which might be explained by a possible competition between the single-cluster Jahn-Teller distortion and spin-orbit coupling.

Original languageEnglish
Pages (from-to)807-809
Number of pages3
JournalJournal of Magnetism and Magnetic Materials
Volume310
Issue number2 SUPPL. PART 1
DOIs
Publication statusPublished - 2007 Mar 1

Keywords

  • Ferrimagnetism
  • Jahn-Teller distortion
  • Spinel

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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