Fig. 7

a Schematic diagram of the energy level of resonant dopants and the relevant change in the DOS; b calculated total DOS for Tl-doped PbTe. Reproduced with permission.90 Copyright 2011, Royal Society of Chemistry
a Schematic diagram of the energy level of resonant dopants and the relevant change in the DOS; b calculated total DOS for Tl-doped PbTe. Reproduced with permission.90 Copyright 2011, Royal Society of Chemistry