Open AccessО подвижности носителей заряда определенной энергии
Author(s) -
Ю.М. Белоусов,
В.Н. Горелкин,
И.В. Черноусов
Publication year - 2018
Publication title -
fizika i tehnika poluprovodnikov
Language(s) - English
Resource type - Journals
eISSN - 1726-7315
pISSN - 0015-3222
DOI - 10.21883/ftp.2018.01.45314.8404
Subject(s) - isotropy , charge carrier , electron mobility , scattering , function (biology) , charge (physics) , phonon , physics , kinetic energy , statistical physics , classical mechanics , quantum mechanics , evolutionary biology , biology
The quasi-mobility function of charge carriers with a specified energy for describing their dynamics using the kinetic equation is studied in the important case of two-term isotropic approximation. In the stationary case, the quasi-mobility function is independent of the source function of charge carriers and makes it possible to calculate the integral mobility. The correlation between the quasi-mobility and parameters of the system is analyzed. It is proved that this characteristic does not generally describe the contribution of charge carriers with a specified energy to the integral mobility. In the case of almost elastic scattering, the quasi-mobility, as is known, can have a clear physical meaning; however, in the case of the scattering of charge carriers at acoustic phonons in a solid, this quasi-mobility interpretation is found to be incorrect due to the specific features of the collision integral and the form of the quasi-mobility function.