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Paper
Longitudinal anisotropy of the high-field conductivity of n-type germanium at room temperature
Abstract
New pulse measurements of the high-field conductivity of n-type germanium at room temperature have been performed. Contrary to previous measurements, the conductivity is anisotropic above the Ohmic field range. The highest current for a given field is found along the <100> crystallographic axes; the <110> current is as much as 9% lower, and the <111> current 14% lower than the <100> current. The maximum anisotropy is found at a field of 3 kV/cm. No region of constant drift velocity is found; current increases with field up to 30 kV/cm, the highest field applied. © 1969 The American Physical Society.