Orbital structure and magnetic ordering in layered manganites: Universal correlation and its mechanism

S. Okamoto, S. Ishihara, S. Maekawa

Research output: Contribution to journalArticlepeer-review

35 Citations (Scopus)

Abstract

Correlation between orbital structure and magnetic ordering in layered manganites is examined. A level separation between the 3d3z2-r2 and 3dx2-y2 orbitals in a Mn ion is calculated in the ionic model for a large number of the compounds. It is found that the relative stability of the orbitals dominates the magnetic transition temperatures as well as the magnetic structures at zero temperature. A mechanism of the correlation between orbital and magnetism is explained by a theory based on the model with the two eg orbitals under strong electron correlation.

Original languageEnglish
Article number104401
Pages (from-to)1044011-1044016
Number of pages6
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume63
Issue number10
Publication statusPublished - 2001 Aug 20

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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