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

doi:10.1063/1.112126

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

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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 language	English (US)
Pages (from-to)	1154-1156
Number of pages	3
Journal	Applied Physics Letters
Volume	65
Issue number	9
DOIs	https://doi.org/10.1063/1.112126
State	Published - 1994

All Science Journal Classification (ASJC) codes

Physics and Astronomy (miscellaneous)

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10.1063/1.112126

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title = "Quantum reflection and transmission of ballistic two-dimensional electrons by a potential barrier",

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.",

author = "X. Ying and Lu, {J. P.} and Heremans, {J. J.} and Santos, {M. B.} and M. Shayegan and Lyon, {S. A.} and M. Littman and P. Gross and H. Rabitz",

year = "1994",

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pages = "1154--1156",

journal = "Applied Physics Letters",

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publisher = "American Institute of Physics Publising LLC",

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T1 - Quantum reflection and transmission of ballistic two-dimensional electrons by a potential barrier

AU - Ying, X.

AU - Lu, J. P.

AU - Heremans, J. J.

AU - Santos, M. B.

AU - Shayegan, M.

AU - Lyon, S. A.

AU - Littman, M.

AU - Gross, P.

AU - Rabitz, H.

PY - 1994

Y1 - 1994

N2 - 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.

AB - 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.

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U2 - 10.1063/1.112126

DO - 10.1063/1.112126

M3 - Article

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JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 9

ER -

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

Abstract

All Science Journal Classification (ASJC) codes

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