Charge and orbital order patterns in an a-site ordered perovskite-type manganite SmBaMn 2O 6 determined by convergent-beam electron diffraction

Daisuke Morikawa, Kenji Tsuda, Youichi Maeda, Shigeki Yamada, Taka Hisa Arima

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15 Citations (Scopus)

Abstract

Charge and orbital ordered (COO) phases of an A-site ordered perovskite-type manganite SmBaMn 2O 6 have been investigated using convergent-beam electron diffraction. The space groups of the room-temperature and low-temperature COO phases are revealed to be Pnam and P2 1am, respectively. Based on the space groups, the COO patterns are unambiguously determined. The noncentrosymmetric space group of the low-temperature phase emerging with the re-arrangement of charge and orbitals are revealed.

Original languageEnglish
Article number093602
Journaljournal of the physical society of japan
Volume81
Issue number9
DOIs
Publication statusPublished - 2012 Sep

Keywords

  • A-site ordered perovskite
  • Charge and orbital order
  • Convergent-beam electron diffraction (CBED)
  • Electronic ferroelectricity

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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