Dimensional crossover in the hopping regime induced by an electric field

作者：D. Shahar, Zvi Ovadyahu · 发表于：Physical Review Letters · 年份：1990 · DOI：10.1103/physrevlett.64.2293 · 被引用次数：32 · 研究领域：Quantum optics and atomic interactions、Spectroscopy and Quantum Chemical Studies、Quantum and electron transport phenomena

The current-voltage characteristics of indium-oxide films in the activationless-hopping regime exhibit an inflection point at a thickness-dependent electric field. It is argued that this electric field reflects a 2D-3D dimensionality crossover expected of a variable-range-hopping system.