Direct observation of orbital ordering in the spinel oxide FeCr2 O4 through electrostatic potential using convergent-beam electron diffraction

K. Tsuda, D. Morikawa, Y. Watanabe, S. Ohtani, T. Arima

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25 Citations (Scopus)

Abstract

A nanoscale structure analysis method using convergent-beam electron diffraction (CBED) has been applied to an orbital-ordered state of Fe 2+ 3d electrons in a spinel oxide FeCr2 O4. The atom positions, atomic displacement parameters, electrostatic potential, and electron density have been determined using CBED intensity data alone. A ferro-type ordered state of the 3 z2 - r2 orbitals at the tetrahedrally coordinated Fe atoms has been successfully observed through the electrostatic potential obtained in the present analysis.

Original languageEnglish
Article number180102
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume81
Issue number18
DOIs
Publication statusPublished - 2010 May 24

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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