Year: 2023
Type: article
Abstract: The calculation of conductivity electron concentrations in n-GaSb at T = 295 K and T = 77 K have been made. The concentration of “heavy” electrons in the L-valley of conduction band at Т = 295 K has been shown to exceed “light” electron one in the Γ-valley. On the contrary, at T = 77 K the conductivity electrons are gathered in the Γ-valley.The results of Hall measurements made on tellurium-doped samples of n-GaSb obtained by the Czochralski method have been represented. It has been shown that upon analysing Hall data at Т = 295 K, it is necessary to take into account the presence of two types of electrons (“light” and “heavy”); their concentrations are not possible to be determined. Seeming increase in electron concentration upon transition from T = 295 K to 77 K really does not take place. The electron concentration at T = 77 K may be determined correctly from the Hall data.
Authors: Yu. N. Parkhomenko, A. G. Belov, E. V. Molodtsova, R. Yu. Kozlov, S. S. Kormilitsina, E. O. Zhuravlev
Language: English
Field: Materials Science
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W4383422147