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Optical and x-ray time resolved study of the structural transition in mixed valence manganites

  • A. Caviezel
  • , U. Staub
  • , S. L. Johnson
  • , S. O. Mariager
  • , G. Ingold
  • , E. Möhr-Vorobeva
  • , M. Garganourakis
  • , S. W. Huang
  • , C. J. Milne
  • , Q. X. Jia
  • , Q. X. Jia
  • , S. W. Cheong
  • , P. Beaud
  • Paul Scherrer Institute
  • Swiss Federal Institute of Technology Zurich
  • Swiss Federal Institute of Technology Lausanne
  • United States Department of Energy
  • Rutgers - The State University of New Jersey, New Brunswick

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Time resolved optical reflectivity and x-ray diffraction techniques are employed to study the laser-induced structural response in two charge and orbitally ordered manganites. Optical data indicate a non-thermal nature of the laser-triggered phase transition via the disappearance of an optical phonon related to the charge and orbitally ordered phase. The x-ray diffraction measurements on superlattice reflections confirm the non-thermal time scale of the initial step of this phase transition but also show that the complete change of structural symmetry is not instantaneous.

Original languageEnglish
Title of host publication18th International Conference on Ultrafast Phenomena, UP 2012
DOIs
StatePublished - 2013
Event18th International Conference on Ultrafast Phenomena, UP 2012 - Lausanne, Switzerland
Duration: Jul 8 2012Jul 13 2012

Publication series

NameEPJ Web of Conferences
Volume41
ISSN (Print)2101-6275
ISSN (Electronic)2100-014X

Conference

Conference18th International Conference on Ultrafast Phenomena, UP 2012
Country/TerritorySwitzerland
CityLausanne
Period07/8/1207/13/12

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