Mössbauer parameters of ordinary chondrites influenced by the fit accuracy of the troilite component: an example of Chelyabinsk LL5 meteorite

A. A. Maksimova, Z. Klencsár, M. I. Oshtrakh, E. V. Petrova, V. I. Grokhovsky, E. Kuzmann, Z. Homonnay, V. A. Semionkin

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16 Citations (Scopus)

Abstract

The influence of the fit accuracy of the troilite component in the Mössbauer spectra of ordinary chondrites on the parameters obtained for other spectral components was evaluated using the Mössbauer spectrum of Chelyabinsk LL5 meteorite fragment with light lithology as a typical example. It was shown that with respect to the application of a usual sextet component where quadrupole interaction is taken into account in the first-order perturbation limit, substantial improvement of the spectrum fit can be achieved either by using the full Hamiltonian description of the troilite component or by its formal approximation with the superposition of three symmetric doublet components. Parameter values obtained for the main spectral components related to olivine and pyroxene were not sensitive to the fit of troilite component while parameters of the minor spectral components depended on the way of troilite component fitting.

Original languageEnglish
Article number33
JournalHyperfine Interactions
Volume237
Issue number1
DOIs
Publication statusPublished - Dec 1 2016

Keywords

  • Chelyabinsk LL5 ordinary chondrite
  • Mössbauer parameters
  • Mössbauer spectroscopy
  • Troilite

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Nuclear and High Energy Physics
  • Atomic and Molecular Physics, and Optics
  • Physical and Theoretical Chemistry

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