Abstract
AbstractThe influence of electric fields on the amplitude of the Shubnikov‐de Haas (SdH) oscillations of p‐type tellurium has been studied for the configuration j ⊥ B and the trigonal c‐axis oriented perpendicular to the magnetic field B and to the current direction. From a comparison of the temperature dependence of the amplitudes of the ohmic SdH data and the electric‐field dependence of the amplitudes at 4.2 K the relation between applied electric field and resulting hole temperature is deduced. The measured energy loss rate of the holes to the lattice is compared with calculated values assuming scattering by acoustic and polar optical phonons. Piezoelectric interaction is responsible for the energy transfer below 6 K. An estimation of the contribution of deformation‐potential scattering allows to derive an approximate value for the valence‐band deformation potential constant EV ≈︁ 1.2 eV. Above 6 K emission of polar optical phonons becomes the dominant energy dissipation mechanism.
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