Speaker
Description
A theory of galvanic and thermomagnetic phenomena in thin films with an isotropic energy spectrum is developed, taking into account electron scattering by film surface roughens. Expressions for the components of galvano- and thermomagnetic tensors in films with rough surfaces were found in the presence of a magnetic field perpendicular to the film plane, an electric field, and a temperature gradient in the film plane.
The kinetic coefficients obtained in this study provide information on the mechanisms of both surface and volume scattering and the characteristics of surface defects. Measuring the kinetic coefficients and analyzing them using the obtained formulas, along with modern experimental research methods, can provide more complete information on surface defects and their influence on film properties.
These formulas are used to estimate the film surface roughness dimensions using experimental data on magnetoresistance and the Hall coefficient.