Site disorder revealed through Raman spectra from oriented single crystals: A case study on karooite (MgTi2O5)

Hanns Peter Liermann, Robert T. Downs, Hexiong Yang

Research output: Contribution to journalArticlepeer-review

8 Scopus citations

Abstract

Raman spectroscopic data were collected from five oriented single crystals of karroite (MgTi2O5) with different ordering states obtained by quenching crystals from 600, 700, 800, 1000, and 1400 °C. The Raman spectra were normalized and treated as vectors. The inner products among the Raman spectra are shown to correlate linearly with the ordered state of the crystals, suggesting that such an analysis of Raman spectra can, in principle, be used to rapidly estimate the ordering state of a mineral, and thus many other crystal properties related to the atomic order-disorder.

Original languageEnglish (US)
Pages (from-to)790-793
Number of pages4
JournalAmerican Mineralogist
Volume91
Issue number5-6
DOIs
StatePublished - May 1 2006

Keywords

  • Cation ordering state
  • Karooite
  • Pseudobrookite
  • Raman spectroscopy

ASJC Scopus subject areas

  • Geophysics
  • Geochemistry and Petrology

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