A non-destructive method was presented for the quantitative determination of vacancy concentrations in Hg-based alloys with tetrahedral structure. The method was based upon identifying additional vibrational modes introduced by lattice deformation into the far infra-red reflectivity spectrum. The method was restricted by sensitivity limitations, but far infra-red experimental data for HgZnTe and HgCdTe samples containing Hg-vacancies confirmed the presence of additional vibrational modes introduced by Hg-vacancies in as-grown crystals.

Quantitative Method of the Point Defect Concentration Determination in Zn- and Cd-Doped HgTe using the Far-Infrared Spectroscopy. J.Cebulski, E.M.Sheregii, J.Polit, A.Marcelli, M.Piccinini, A.Kisiel, I.V.Kucherenko, R.Triboulet: Physica Status Solidi C, 2009, 6[9], 2020-3