Halogen transport method was applied to grow the crystals of solid solutions of ZnSe and transition metals at the temperature far below the melting point and phase transition temperature. The large crystals of ZnMnSe, ZnFeSe, ZnNiSe and ZnFeSSe were obtained. The technological parameters and shape of the quartz reactor were chosen for growth of a large crystal by self-nucleation; the transparent quartz furnace enabled the control of nucleation by visual observation. The parameters of crystal growth were determined. The crystal quality was estimated by X-ray diffraction method. The composition of crystals was determined by electron microprobe analysis and energy dispersive X-ray fluorescence analysis.
Single crystals of Cd_{1-x}Ni_{x}Se alloys (x ranging from 0 to 0.075) were investigated using electron microprobe and X-ray diffraction. The analysis shows the presence of Ni-Se precipitates. The solubility limit of Ni is estimated to be 0.008.
Layers of Sn_{1-x}Mn_{x}Te (x ≤ 0.1) with thickness 0.2-2 μm were grown by molecular beam epitaxy on BaF_{2} substrates with a 0.01-1 μm thick SnTe buffer layer. Both SnTe and Sn_{1-x}Mn_{x}Te layers show metallic p-type conductivity with conducting hole concentrations (at T=77 K) p_{77}=7×10^{19} -2×10^{21} cm^{-3}. The layers grown under the conditions of an extra Te flux have a high carrier concentration and exhibit ferromagnetic phase transition at T_{C} ≤ 7 K. The layers grown with no (or very low) additional Te flux show low carrier concentrations (below 10^{20} cm^{-3}) and remain paramagnetic in the temperature range studied T=4.5÷70 K.
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