Nonlinear Conduction of ZnS in Strong Electric Fields

Abstract

Electric conduction of cubic ZnS crystal was investigated in the field range from 2×${10}^4$ to 3×${10}^6$ V/cm. The resonant type current anomalies were observed around 4×${10}^5$, 1×${10}^6$, and 1.4×${10}^6$ V/cm. The experimental results suggest that the Stark ladder will play an important role in the high-field transport phenomena.