Effects of quantum levels on transport through a Coulomb island

E. B. Foxman, P. L. McEuen, U. Meirav, Ned S. Wingreen, Yigal Meir, Paul A. Belk, N. R. Belk, M. A. Kastner, S. J. Wind

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200 Scopus citations

Abstract

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.

Original languageEnglish (US)
Pages (from-to)10020-10023
Number of pages4
JournalPhysical Review B
Volume47
Issue number15
DOIs
StatePublished - Jan 1 1993
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics

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    Foxman, E. B., McEuen, P. L., Meirav, U., Wingreen, N. S., Meir, Y., Belk, P. A., Belk, N. R., Kastner, M. A., & Wind, S. J. (1993). Effects of quantum levels on transport through a Coulomb island. Physical Review B, 47(15), 10020-10023. https://doi.org/10.1103/PhysRevB.47.10020