Nanometer-sized regions of charge ordering and charge melting in La2/3Ca1/3MnO3 revealed by electron microdiffraction

J. M. Zuo, J. Tao

Research output: Contribution to journalArticlepeer-review

Abstract

Electron microdiffraction study of phase transition in La2/3Ca1/3MnO3 revealed temperature-dependent (h + 1/2,0,l) diffraction spots. Their intensity peaks at Tc. Quantitative electron diffraction intensity analysis shows that they come from nanometer-sized domains with modulated transverse atomic displacements in the orthorhombic a-c plane, which has two types of Mn ions and thus charge ordering. The average domain is ∼3.6 nm in diameter and ∼1.5 nm in height (along the b axis). The number of domains increases and then decreases, as the sample is cooled through Tc.

Original languageEnglish (US)
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume63
Issue number6
DOIs
StatePublished - Jan 19 2001

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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