期刊
THIN SOLID FILMS
卷 571, 期 -, 页码 589-592出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.tsf.2014.02.100
关键词
Dielectric function spectra; Optical transitions; Thallium compounds; Electronic band structure
类别
资金
- Grants-in-Aid for Scientific Research [24560381, 26420278] Funding Source: KAKEN
TlGaS2 with a quasi-two-dimensional structure has been accessed by spectroscopic ellipsometry over the 1.5-6.0 eV spectral range. A uniaxial approach applicable to monoclinic TlGaS2 at room temperature has been employed for ellipsometric data treatment. Principal components of the dielectric function tensor have then been retrieved. Inter-band optical transitions associated with the obtained dielectric function have been determined by using standard critical point analysis. The transitions have been assigned within the electronic band structure obtained for TlGaS2 from calculations based on density functional theory. (C) 2014 Elsevier B.V. All rights reserved.
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