Quantitative electron incoherent scattering and application to nanometre-sized charge ordering in La2/3Ca1/3MnO3

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Abstract

A new scattering matrix theory that takes full account of electron multiple scattering is described for electron incoherent scattering based on the two-phase model. This theory was applied to determine the structure of nanometre-sized charge ordering in La2/3Ca1/3MnO3, where the ordered structure is distributed randomly in the crystal and contributes to the total scattering incoherently. The experimental diffraction pattern from La2/3Ca1/3MnO3 has the characteristics of a displacement wave. Based on this, we proposed a structural model and tested it by comparing the experimental diffraction intensities with theoretical intensities. Quantitative analysis was made possible by using electron energy-filtering and imaging plates for electron intensity measurement. The good agreement between the experiment and theory shows that it is possible to extract important structural information from electron incoherent scattering.

Original languageEnglish (US)
Pages (from-to)S67-S72
JournalJournal of Electron Microscopy
Volume51
Issue numberSUPPL.
DOIs
StatePublished - 2002

Keywords

  • Charge ordering
  • Electron diffraction
  • Energy filtering
  • Incoherent scattering

ASJC Scopus subject areas

  • Instrumentation

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