Resonance effect in ELNES from perovskite-type manganites BiMnO3 and LaMnO3

Yasukazu Murakami, Daisuke Shindo, Masae Kikuchi, Jianm Min Zuo, John Spence

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Fine structures in electron energy-loss spectra, observed 30-40 eV beyond the threshold of oxygen K-edges in perovskite-type manganites BiMnO3 and LaMnO3, are discussed. LaMnO3 with orthorhombic symmetry (space group Pbnm) shows a clear peak in this region. However, BiMnO3 with a heavily distorted perovskite-type structure (monoclinic, space group C2) does not show an appreciable peak. It is demonstrated that peaks in this energy region arise from the resonance effect of ejected core electrons and that the shape is sensitive to the environment of neighbouring oxygen atoms in the perovskite-type structures.

Original languageEnglish (US)
Pages (from-to)99-103
Number of pages5
JournalJournal of Electron Microscopy
Volume51
Issue number2
DOIs
StatePublished - 2002

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Manganites
Perovskite
Electrons
Oxygen
oxygen atoms
Energy dissipation
energy dissipation
fine structure
electron energy
Atoms
thresholds
symmetry
oxygen
perovskite
electrons
energy

Keywords

  • Bond length
  • EELS
  • ELNES
  • Perovskite-type manganites
  • Resonance effects

ASJC Scopus subject areas

  • Instrumentation

Cite this

Resonance effect in ELNES from perovskite-type manganites BiMnO3 and LaMnO3. / Murakami, Yasukazu; Shindo, Daisuke; Kikuchi, Masae; Zuo, Jianm Min; Spence, John.

In: Journal of Electron Microscopy, Vol. 51, No. 2, 2002, p. 99-103.

Research output: Contribution to journalArticle

Murakami, Yasukazu ; Shindo, Daisuke ; Kikuchi, Masae ; Zuo, Jianm Min ; Spence, John. / Resonance effect in ELNES from perovskite-type manganites BiMnO3 and LaMnO3. In: Journal of Electron Microscopy. 2002 ; Vol. 51, No. 2. pp. 99-103.
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AU - Zuo, Jianm Min

AU - Spence, John

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