Imaging of quantum interference patterns within a quantum point contact

Carlo R. Da Cunha; Nobuyuki Aoki; Takahiro Morimoto; Yuichi Ochiai; Richard Akis; David K. Ferry

doi:10.1063/1.2405843

Imaging of quantum interference patterns within a quantum point contact

Carlo R. Da Cunha, Nobuyuki Aoki, Takahiro Morimoto, Yuichi Ochiai, Richard Akis, David K. Ferry

Research output: Contribution to journal › Article › peer-review

25 Scopus citations

Abstract

Visualization of quantum interference patterns has been obtained within a quantum point contact using scanning gate microscopy. The area distribution of the interference pattern is shown to be consistent with the interference area obtained from the magnetoconductance fluctuations of a quantum point contact. Both distributions follow the Gaussian unitary ensemble, corresponding to chaotic behavior. The interference is caused by the random potential fluctuations within the channel, which is modified by the tip-induced potential.

Original language	English (US)
Article number	242109
Journal	Applied Physics Letters
Volume	89
Issue number	24
DOIs	https://doi.org/10.1063/1.2405843
State	Published - 2006

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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10.1063/1.2405843

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title = "Imaging of quantum interference patterns within a quantum point contact",

abstract = "Visualization of quantum interference patterns has been obtained within a quantum point contact using scanning gate microscopy. The area distribution of the interference pattern is shown to be consistent with the interference area obtained from the magnetoconductance fluctuations of a quantum point contact. Both distributions follow the Gaussian unitary ensemble, corresponding to chaotic behavior. The interference is caused by the random potential fluctuations within the channel, which is modified by the tip-induced potential.",

author = "{Da Cunha}, {Carlo R.} and Nobuyuki Aoki and Takahiro Morimoto and Yuichi Ochiai and Richard Akis and Ferry, {David K.}",

year = "2006",

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language = "English (US)",

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journal = "Applied Physics Letters",

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T1 - Imaging of quantum interference patterns within a quantum point contact

AU - Da Cunha, Carlo R.

AU - Aoki, Nobuyuki

AU - Morimoto, Takahiro

AU - Ochiai, Yuichi

AU - Akis, Richard

AU - Ferry, David K.

PY - 2006

Y1 - 2006

N2 - Visualization of quantum interference patterns has been obtained within a quantum point contact using scanning gate microscopy. The area distribution of the interference pattern is shown to be consistent with the interference area obtained from the magnetoconductance fluctuations of a quantum point contact. Both distributions follow the Gaussian unitary ensemble, corresponding to chaotic behavior. The interference is caused by the random potential fluctuations within the channel, which is modified by the tip-induced potential.

AB - Visualization of quantum interference patterns has been obtained within a quantum point contact using scanning gate microscopy. The area distribution of the interference pattern is shown to be consistent with the interference area obtained from the magnetoconductance fluctuations of a quantum point contact. Both distributions follow the Gaussian unitary ensemble, corresponding to chaotic behavior. The interference is caused by the random potential fluctuations within the channel, which is modified by the tip-induced potential.

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DO - 10.1063/1.2405843

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VL - 89

JO - Applied Physics Letters

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Imaging of quantum interference patterns within a quantum point contact

Abstract

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