An optical-absorption study of RuTe2 single crystals

P. C. Liao, J. K. Huang, Y. S. Huang, T. R. Yang

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Abstract

An optical-absorption study of synthetic RuTe2 single crystals is reported over a temperature range from 4.2 to 350 K. The analysis of the absorption curves reveals that the interband transitions in RuTe2 are indirect. The indirect band gap of various temperatures are determined and its temperature dependence are analyzed by the Varshni equation [Physica 34, 149 (1967)] and an empirical expression proposed by O'Donnell and Chen [Appl. Phys. Lett. 58, 2924 (1991)]. The parameters that describe the temperature dependence of energy gap of RuTe2 are evaluated and discussed.

Original languageEnglish
Pages (from-to)279-282
Number of pages4
JournalSolid State Communications
Volume98
Issue number4
DOIs
Publication statusPublished - 1996 Apr

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Keywords

  • A. semiconductors
  • D. optical properties
  • E. light absorption and reflection

ASJC Scopus subject areas

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

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