Evidence for a local lattice distortion in Ca-doped LaM

T. Tyson, J. Mustre de Leon

Research output: Contribution to journalArticlepeer-review

135 Scopus citations

Abstract

We have found that a significant change in the local structure of (Formula presented) occurs between 80 K and temperatures above the Curie temperature, (Formula presented) K. Near-edge x-ray-absorption spectra exhibits changes between 80 K and above (Formula presented). X-ray-absorption fine structure reveals differences between the nearest-neighbor Mn-O bond distributions at 80 K and above (Formula presented). The single-site distribution at low temperature becomes a complex, multi-site distribution above (Formula presented). The observed change is consistent with proposed small polaron related local Jahn-Teller distortions for (Formula presented).

Original languageEnglish (US)
Pages (from-to)13985-13988
Number of pages4
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume53
Issue number21
DOIs
StatePublished - 1996
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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