Physical Meaning Of The So Called Kinetic Compensation Effect

It is shown that the kinetic compensation effect (for conductivity called Meyer-Nelder thermodynamic compensation rule) mathematically results from the exponential form of the Arrhenius rate constant and certain types of approximations. A change of activation energy is thus compensated by the same change in the logarithm of the pre-factor. As an example, resulting temperature dependence of field effect and the activation energy can serve to demonstrate a useful tool for the estimation of the role of the interface states while investigating insulator (SiO2 or SiNx) and amorphous (glassy) semiconductor (a-Si)