BAND OF CONDUCTION OF ALLOYS BISMUTH-ANTIMONY, RICH IN BISMUTH
The Conductivity Zone of bismuth - antimony (stibium) rich in bismuth. The electrotype - thermomagnetic effect research complex has been realized in alloy of Bi - Sb connecting Sb 0 - 22 at% alloyed Te and Se in the temperature interval 77 - 300 K <sup>0</sup> and in magnetic field fill 10 kГs. On the grounds of the results we have got and the results given before the method of spector zone calculation in alloys of Bi - Sb connecting any Sb quantity in the alloys and for any temperature. The theoratical calculation of the zone spectors of the pure Bi and Sb is in the bases conducted by the pseudopotential method by Golin, Falikov and Lin. The method is based on the lined intercalaction of the terms when we deal with the transition of zone structure Bi to the Sb zone structure. It has been considered that the term position in the first proximity is the lined function of the parameter grating. The effect analysis independent of the dispersion permits to find out the zone interation in Bi - Sb alloys. In the alloys with 12 at% Sb higher placed zone of the free condition has a great in fluence on the electron zone dispersion law of conducting. As far, as Fermi level is becoming higher tax model is gradually to Kowen model. Having got nonquadrature factor in the electron dispersion law of the allows we deal with the effect research dependent on the dispersion mechanism. It gives a possibility to define domination role of dispersion mechanism when the temperature may by different. We have also found out that when T < Ɵ <sub>D</sub> the dominate mechanism of the electron dispersion is the dispersion on the optical branch of the grating oscillation, when T > Ɵ <sub>b</sub> we deal with the dispersion on a neutral admixture.