On the complex structure of the optical spectra of a tetragonal calomel single crystal in a wide energy range
- Authors: Sobolev V.V.1, Sobolev V.V.2, Anisimov D.V.1
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Affiliations:
- Udmurt State University
- Izhevsk State Technical University
- Issue: Vol 50, No 1 (2016)
- Pages: 29-33
- Section: Electronic Properties of Semiconductors
- URL: https://journals.rcsi.science/1063-7826/article/view/196678
- DOI: https://doi.org/10.1134/S1063782616010206
- ID: 196678
Cite item
Abstract
The spectral complex of optical functions of the calomel Hg2Cl2 single crystal is determined in the range 0–20 eV at 300 K in unpolarized light. The spectra of the imaginary part of the permittivity ε2(E), the bulk–Imε–1 and the surface–Im(1 + ε)–1 electron energy losses are decomposed into elementary bands. Their main parameters, including energies and oscillator strengths of the transition bands are determined. Calculations are performed on the basis of the experimental reflectance spectrum of the crystal cleavage. Computer programs based on Kramers–Kronig relations, analytical formulas, and the advanced parameterfree method of combined Argand diagrams are used. The main features of the spectral set of optical functions and the parameters of expansion band components ε2(E),–Imε–1, and–Im(1 + ε)–1 are determined.
About the authors
V. V. Sobolev
Udmurt State University
Author for correspondence.
Email: sobolev@uni.udm.ru
Russian Federation, ul. Universitetskaya 1, Izhevsk, 426034
V. Val. Sobolev
Izhevsk State Technical University
Email: sobolev@uni.udm.ru
Russian Federation, ul. Studencheskaya 7, Udmurt Republic, Izhevsk, 426069
D. V. Anisimov
Udmurt State University
Email: sobolev@uni.udm.ru
Russian Federation, ul. Universitetskaya 1, Izhevsk, 426034