Electroconductivity and electron scattering mechanisms in ultra-pure compensated metals at high magnetic fields

Abstract

The transverse magnetoresistivity of tungsten, molybdenum and rhenium single crystals with resistivity ratios of up to 80.000 were measured in the temperature range from 4.2 to 50 K in magnetic fields up to 15 T. We show that four main scattering mechanisms of the conduction electrons in pure crystals of compensated metals exist at high magnetic fields: electron-surface scattering, inter- and intrasheet electron-phonon scattering, and “electron-phononsurface” scattering. The data allow us to explain some of the anomalies, which occur in the high-field magnetoconductivity of metals.