BODIUL, P. P.; GITSU, D. V.; MIGLEY, D. F.
(John Wiley & Sons, Inc., 1976)
According to thr current band model of PbTe and its alloys with SnTe, the absolute extrema of conduction and valence bands at low and intermediate temperatures are localised at L. points of the Brillouin zone. The isoenergetic ...