An optical absorption study of RuS2 single crystals

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

*此作品的通信作者

研究成果: 雜誌貢獻期刊論文同行評審

6 引文 斯高帕斯(Scopus)

摘要

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.

原文英語
文章編號015
頁(從 - 到)4175-4181
頁數7
期刊Journal of Physics: Condensed Matter
7
發行號21
DOIs
出版狀態已發佈 - 1995

ASJC Scopus subject areas

  • 材料科學(全部)
  • 凝聚態物理學

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