Quantum reflection and transmission of ballistic two-dimensional electrons by a potential barrier

X. Ying, J. P. Lu, J. J. Heremans, M. B. Santos, M. Shayegan, S. A. Lyon, M. Littman, P. Gross, H. Rabitz

Research output: Contribution to journalArticle

6 Scopus citations

Abstract

Measurements of the reflection and transmission coefficients of ballistic two-dimensional electrons by a potential barrier, induced via a surface gate, reveal that both coefficients vary gradually with the barrier height when it is less then the electron Fermi energy. Superimposed on the gradual variation, oscillatory structure which are consistent with interference resonances are also observed. The data imply that the potential barrier seen by the two-dimensional electrons is sharp compared to the electron wavelength.

Original languageEnglish (US)
Pages (from-to)1154-1156
Number of pages3
JournalApplied Physics Letters
Volume65
Issue number9
DOIs
StatePublished - 1994

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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