Photoelectric Properties of Zinc Single Crystals

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Abstract
An experiment is described in which the photoelectric properties of outgassed single crystals of zinc were studied. After treating the emitting surfaces of a crystal with ultraviolet light and thermally evaporating some of the zinc, a stable condition was reached. In this stable condition a difference in the long wave limits of the polycrystalline surface and cleft 0001 face of approximately 260A was observed. The results are discussed with regard to possible sources of contamination and the presence of occluded gas layers.