Optical and electronic properties of Cu-Mn solid solutions

• Published in: Semiconductor Physics Quantum Electronics & Optoelectronics
• Date: 2013
• Main Authors: Bondar, V.M., Stashchuk, V.S., Polianska, O.P., Chernukha, Ie.O., Tsuk, B.A., Lysiuk, V.O.
• Format: Article
• Language: English
• Published: Інститут фізики напівпровідників імені В.Є. Лашкарьова НАН України 2013
• Online Access: https://nasplib.isofts.kiev.ua/handle/123456789/117680
• Journal Title: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Cite this: Optical and electronic properties of Cu-Mn solid solutions / V.M. Bondar, V.S. Stashchuk, O.P. Polianska, Ie.O. Chernukha, B.A. Tsuk, V.O. Lysiuk // Semiconductor Physics Quantum Electronics & Optoelectronics. — 2013. — Т. 16, № 2. — С. 166-169. — Бібліогр.: 12 назв. — англ.

The optical properties of Cu-Mn alloys with Mn concentrations of 2, 5, 10 and
 17.5% (which corresponds to the γ-solid solutions) were studied within a wide spectral
 range of 0.23 to 2.8 μm (0.44…5.39 eV). Real and imaginary parts of the refractive index
 were measured, other optical properties such as dielectric constant, optical conductivity
 and the coefficient of specular reflectance at normal incidence were calculated being
 based on them. The analysis of the dispersion dependences ε(hν), R(hν) and σ(hν)
 enabled us to offer the electronic structure model for these alloys. According to this
 model, the electronic spectra (dependence of the density of electronic states on energy
 N(E)) of alloys with the indicated concentrations of components are the superposition of
 electronic spectra of Cu host, with weights equal to Cu concentrations, and the density of
 states within the impurity band, calculated using the experimental data. 
 Remove selected