Valence measurement of Mn oxides using Mn Kβ emission spectroscopy

Q. Qian, T. A. Tyson, C. C. Kao, J. P. Rueff, F. M.F. Degroot, M. Croft, S. W. Cheong, M. Greenblatt, M. A. Subramanian

Research output: Contribution to journalConference articlepeer-review

12 Scopus citations

Abstract

High resolution Mn Kβ emission spectra provide a direct method to probe the effective spin state and charge density on Mn sites. Direct comparison of MnF2 and MnO reveals significant changes due to the degree of covalency. The detailed shape and energy shift of the spectra for the perovskite LaMnO3 and CaMnO3 compounds are found to be very similar to Mn2O3 and MnO2, respectively. Detailed Mn Kβ X-ray emission results on La1-xCaxMnO3 can be well fit by linear superpositions of the end member spectra. However, for x<0.3, a retarded response is found. No evidence for Mn2+ is found.

Original languageEnglish (US)
Pages (from-to)457-460
Number of pages4
JournalJournal of Physics and Chemistry of Solids
Volume61
Issue number3
DOIs
StatePublished - Mar 2000
EventInternational Workshop on Inelastic X-ray Scattering - Long Island, NY, USA
Duration: Oct 18 1998Oct 21 1998

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

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