Raman Spectra of PbTe- and GeTe-Based Monocrystalline Epitaxial Layers

Figure 3

(a) Raman spectra of Ge_0.989Eu_0.011Te/BaF₂ and (Ge, Eu)Te/GeTe/BaF₂ and (b) Raman spectra of Pb_0.94Ge_0.049Eu_0.011Te/BaF₂, Pb_0.91Ge_0.046Eu_0.044Te/BaF₂, and Pb_0.697Ge_0.259Eu_0.044Te/(Pb,Ge)Te/BaF₂.

(a)

(b)