Figure 3.

(Color online) The DOS near the Fermi level for PbTe NW in CdTe matrix (black line) with not-relaxed (a) and relaxed (b) atomic positions. The diameter of the wire is 3.6 nm. Here, and in all following figures, the energy zero in the valence and conduction bands was put at the energy corresponding to Fermi level for carrier concentration p(n) = 10¹⁹ cm^-3. The red lines refer to the bulk crystal of PbTe.