Abstract
The electric conductivity ofn-type germanium at large d.c. field intensities has been measured in three directions of symmetry of the cubic lattice. From these data the repopulation of valleys of the conduction band has been determined. Measurements were done with three materials of different purity. The variation of repopulation between these materials can be explained qualitatively by the influence of Coulomb scattering at ionized impurities. The data are compared with those ofNathan and theoretical data ofFranz andReik et al. The relations of these data to those of the current component perpendicular to the field direction (Sasaki et al.) are also given.
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We are indebted to Professor O.Haxel for his continued interest and support of this work. Support by the Deutsche Forschungsgemeinschaft is gratefully acknowledged.
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Schweitzer, D., Seeger, K. The anisotropy of conductivity of n-type germanium in strong d.c. fields. Z. Physik 183, 207–216 (1965). https://doi.org/10.1007/BF01380796
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DOI: https://doi.org/10.1007/BF01380796