Transport spectroscopy of a Coulomb island in the quantum Hall regime

作者：Paul L. McEuen, E. B. Foxman, U. Meirav, M. A. Kastner, Yigal Meir, Ned S. Wingreen, Shalom J. Wind · 发表于：Physical Review Letters · 年份：1991 · DOI：10.1103/physrevlett.66.1926 · 被引用次数：382 · 研究领域：Quantum and electron transport phenomena、Semiconductor Quantum Structures and Devices、Surface and Thin Film Phenomena

Transport measurements of a Coulomb island, a semiconductor dot small enough that Coulomb interactions dominate transport are presented. At moderate magnetic fields (B=2--4 T) the amplitude and position of the Coulomb-regulated conductance peaks show distinct periodic structure as a function of B. This structure is shown to result from the B dependence of the quantized single-particle energy states on the island. Analysis of successive peaks is used to map out the single-particle level spectrum of the island as a function of B.