Direct Observation of Orbital Order in Manganites by MEM Charge-Density Study

Masaki Takata, Eiji Nishibori, Kenichi Kato, Makoto Sakata, Yutaka Moritomo

Research output: Contribution to journalArticle

95 Citations (Scopus)

Abstract

We have investigated the charge-density distribution of an antiferromagnetic bi-layered manganite, NdSr2Mn2O7, by the maximum entropy method (MEM) using the synchrotron X-ray powder data. The magnetic structure below TN = 150 K is known to be a layered-type (A-type). We have found a significant change of the electron distribution around the Mn site below TN. Our observation indicates dx2 - y2-orbilal polarization in the A-type antiferromagnetic state.

Original languageEnglish
Pages (from-to)2190-2193
Number of pages4
Journaljournal of the physical society of japan
Volume68
Issue number7
DOIs
Publication statusPublished - 1999 Jan 1
Externally publishedYes

Keywords

  • A-type structure
  • Charge density
  • Layered manganites
  • Maximum entropy method

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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