Reflectivity Study of HgSe1-xTex Crystals
B.J. Kowalski, K. Dybko, A. Lemańska and B.A. Orłowski
Institute of Physics, Polish Academy of Sciences, Al. Lotników 32/46, 02-668 Warszawa, Poland
Full Text PDF
The room temperature reflectivity spectra of HgSe1-xTex (x = 0, 0.4, 0.5, 1.0) crystals were measured in the visible and ultraviolet range from 1.5 to 12 eV. The maxima characteristic of the binary HgAIV compounds can be revealed in the mixed crystals spectra, but their position depends on the crystal composition. There is no duplication of the spectral features in spite of the different energy position of the maxima for HgSe and HgTe. This suggests that the virtual crystal approximation could be used to describe basic optical properties of HgSe1-xTex.
DOI: 10.12693/APhysPolA.82.845
PACS numbers: 78.20.Ci