Visualization of charge ordering in a half-doped manganite by an electrostatic potential analysis

K. Kato, Y. Moritomo, M. Takata, H. Tanaka, N. Hamada

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)

Abstract

We have experimentally investigated the charge density distribution and the electrostatic potential for a charge-ordering doped manganite, Nd1/2 Sr1/2 MnO3. In the charge-ordered state, we observed a zigzag pattern of the charge density within the (010) plane. Judging from the MnO6 distortion, we ascribed the pattern to the bonding electron in the px(y) - d x2 - y2 hybridized state, not to the so-called d3 x2 - r2/d3 y2 - r2 orbital ordering. We further calculated the electrostatic potential U(r) from the charge density and the atomic positions, which clearly indicates the checkerboard-type charge disproportionation within the (010) plane.

Original languageEnglish
Article number081101
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume77
Issue number8
DOIs
Publication statusPublished - 2008 Feb 28
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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