Soft x-ray resonant diffraction in transition metal oxides

K. Jessica Thomas, S. Grenier, J. P. Hill, F. C. Chou, Y. Tomioka, Y. Tokura, P. Abbamonte

Research output: Contribution to journalConference articlepeer-review

Abstract

We discuss recent soft x-ray resonant diffraction studies of magnetic and structural correlations in manganites and cobaltates. In half-doped manganites, the resonant enhancement of super-lattice diffraction peaks resulting from orbital and magnetic order is utilized to make a direct comparison of orbital and spin correlations. The main finding is that the correlation length associated with magnetic order exceeds that of the orbital order by of order a factor of two - a result which appears at odds with orbitally driven magnetic exchange pathways. Similar resonant diffraction measurements at the Co L-edge were performed to study the oxygen-doped cobaltate Bi2Sr 2CoO6+δ, in which we find a surprising incommensurate antiferromagnetic order.

Original languageEnglish (US)
Article number59322A
Pages (from-to)1-9
Number of pages9
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume5932
DOIs
StatePublished - 2005
Externally publishedYes
EventStrongly Correlated Electron Materials: Physics and Nanoengineering - San Diego, CA, United States
Duration: Jul 31 2005Aug 4 2005

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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