The Dynamic Dielectric Function "Anomaly" for HgSe:Ga and HgSe:Fe
W. Szuszkiewicza, G. Karczewskib, M. Jeżewskia, B. Witkowskab and A. Mycielskib
aInstitute of Experimental Physics, Warszawa University, Hoża 69, 00-681 Warszawa, Poland
bInstitute of Physics, Polish Academy of Sciences, Al. Lotników 32/46, 02-668 Warsaw, Poland
Received: August 8, 1990
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Reflectivity spectra of HgSe crystals highly doped with Ga and Fe, respectively, were investigated in the spectral region close to the absorption edge at temperatures between 12 K and 295 K. From the analysis of the structure observed in reflectivity the temperature dependence of the Fermi energy was determined for both kinds of crystals.
DOI: 10.12693/APhysPolA.79.369
PACS numbers: 75.50.Pp, 78.20.Ci, 78.30.Fs