John G. Long, Peter C. Searson, et al.
JES
Transport measurements are used to study the quantized energy levels in a small electron gas, referred to as a Coulomb island. First, large-bias measurements reveal the excitation spectrum of the island. Second, small-bias measurements probe the intrinsic line shape of energy levels. Line shapes are generally fit well by thermally broadened Lorentzians. In addition, a decrease in the charging energy of the island is observed as the coupling to its leads is increased. This effect is shown to be consistent with a dramatic increase in one of the island-lead capacitances. © 1993 The American Physical Society.
John G. Long, Peter C. Searson, et al.
JES
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MRS Spring Meeting 1999
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J. Photopolym. Sci. Tech.
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