Longitudinal magnetoresistance of metals calculated on the basis of a single-band electron theory

Abstract

The longitudinal magnetoresistance of metals at different temperatures and strengths of the external magnetic field is examined with the aid of a simple single-band theory. The calculated data are compared with the experimental ones. The theoretical ratio between the longitudinal and transversal magnetoresistance approaches unity, whereas the observed ratio is rather below that value. For some metals (Al, Pt) the theoretical results are within the range of the measured data for the transversal and longitudinal resistance, or remain close to the limits of this empirical interval. In average, a relatively good agreement between experiment and theory is obtained for Al, Pt, Cu, Ag and In metals.