An optical absorption study of RuS2 single crystals

J. K. Huang*, Y. S. Huang, T. R. Yang

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)


The optical absorption study of synthetic RuS2 single crystals grown in tellurium fluxes is reported over a temperature range from 4.2 K to 300 K. The data are fitted to several expressions for the shape of the absorption edge, with the best fit being to that expected for indirect allowed transitions. The indirect band gaps at various temperatures are determined. The temperature dependence is analysed by the Varshni equation and an empirical expression proposed by O'Donnell and Chen. The parameters that describe the temperature dependence of the energy gap of RuS2 are evaluated. At temperatures lower than 100 K, several features which occur below the absorption edge are superposed on the absorption curve. The origin of these features is discussed.

Original languageEnglish
Article number015
Pages (from-to)4175-4181
Number of pages7
JournalJournal of Physics: Condensed Matter
Issue number21
Publication statusPublished - 1995
Externally publishedYes

ASJC Scopus subject areas

  • General Materials Science
  • Condensed Matter Physics


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