Limited local electron-lattice coupling in manganites: An electron diffraction study

D. Sanchez, M. J. Calderon, J. Sanchez-Benitez, A. J. Williams, J. P. Attfield, P. A. Midgley, N. D. Mathur, Paul Attfield

Research output: Contribution to journalArticlepeer-review

Abstract

(Pr, Ca)MnO3 is the archetypal charge-ordered manganite, but in Pr0.48Ca0.52MnO3, we find (using convergent-beam electron diffraction and dark-field images) that the superlattice period is locally incommensurate with respect to the parent lattice and that the superlattice orientation possesses significant local variations. This suggests that local electron-lattice coupling never overwhelmingly dominates the rich physics of manganites, even in the most extreme scenarios that produce the largest colossal magnetoresistance effects.

Original languageEnglish
Article number092411
Pages (from-to)-
Number of pages4
JournalPhysical review B: Condensed matter and materials physics
Volume77
Issue number9
DOIs
Publication statusPublished - Mar 2008

Keywords

  • LOW-TEMPERATURE MAGNETORESISTANCE
  • NEUTRON-DIFFRACTION
  • CHARGE
  • PR1-XCAXMNO3
  • LA0.5CA0.5MNO3
  • LA1-XCAXMNO3
  • FILMS
  • SPIN
  • CA

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