نوع مقاله : مقاله کامل پژوهشی
موضوعات
عنوان مقاله English
نویسندگان English
The present study aims to determine the scattering mechanism in two types of n- and p-type InSb single crystal semiconductors. For this purpose, the changes in the Hall constant, electrical conductivity, dynamics coefficient in the temperature range of 77K to 360K, and Hall effect with an intensity of 7900 Gauss were simultaneously measured and compared with the theoretical results. Additionally, Debye temperature and dispersion mechanism were determined from the curve of changes in the mobility coefficient with respect to temperature. Further, the energy of the forbidden band and overlapping temperature were calculated from the curve of changes in the electrical conductivity, and the density of the charged particles as well as the type of charge carriers were determined from the changes in the Hall constant with respect to temperature. From the change curve of the dynamic’s coefficient with respect to temperature, the dispersion mechanism was defined. In this experiment, for the n-type sample, the scattering mechanism was carried out by the optical mode at high temperatures and by impurity at low temperatures. In the p-type sample, scattering was done by the acoustic mode. Finally, in both samples, the dynamics coefficient was theoretically calculated that showed good agreement with the experimental values.
کلیدواژهها English