Zero-dimensional states in macroscopic resonant tunneling devices

J. W. Sakai; P. C. Main; P. H. Beton; N. La Scala; A. K. Geim; L. Eaves; M. Henini

doi:10.1063/1.111574

Zero-dimensional states in macroscopic resonant tunneling devices

J. W. Sakai, P. C. Main, P. H. Beton, N. La Scala, A. K. Geim, L. Eaves, M. Henini

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

Abstract

We demonstrate that it is possible to observe transport through individual tunneling channels due to zero-dimensional states in large area resonant tunneling devices (RTD). These localized states are found to be related to the presence of donor impurities in the vicinity of the quantum well but their binding energies are larger than that due to a single isolated hydrogenic donor. The states give rise to additional peaks in current voltage below the threshold for the main resonant peak. These peaks are visible in RTD with essentially any lateral dimension provided the current is measured with sufficient sensitivity.

Original language	English
Pages (from-to)	2563-2565
Number of pages	2
Journal	Applied Physics Letters
Volume	64
Issue number	19
DOIs	https://doi.org/10.1063/1.111574
Publication status	Published - 1994

Keywords

quantum-well

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10.1063/1.111574

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title = "Zero-dimensional states in macroscopic resonant tunneling devices",

abstract = "We demonstrate that it is possible to observe transport through individual tunneling channels due to zero-dimensional states in large area resonant tunneling devices (RTD). These localized states are found to be related to the presence of donor impurities in the vicinity of the quantum well but their binding energies are larger than that due to a single isolated hydrogenic donor. The states give rise to additional peaks in current voltage below the threshold for the main resonant peak. These peaks are visible in RTD with essentially any lateral dimension provided the current is measured with sufficient sensitivity.",

keywords = "quantum-well",

author = "Sakai, {J. W.} and Main, {P. C.} and Beton, {P. H.} and {La Scala}, N. and Geim, {A. K.} and L. Eaves and M. Henini",

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year = "1994",

doi = "10.1063/1.111574",

language = "English",

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journal = "Applied Physics Letters",

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publisher = "American Institute of Physics",

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T1 - Zero-dimensional states in macroscopic resonant tunneling devices

AU - Sakai, J. W.

AU - Main, P. C.

AU - Beton, P. H.

AU - La Scala, N.

AU - Geim, A. K.

AU - Eaves, L.

AU - Henini, M.

N1 - Nk258 Times Cited:32 Cited References Count:12

PY - 1994

Y1 - 1994

N2 - We demonstrate that it is possible to observe transport through individual tunneling channels due to zero-dimensional states in large area resonant tunneling devices (RTD). These localized states are found to be related to the presence of donor impurities in the vicinity of the quantum well but their binding energies are larger than that due to a single isolated hydrogenic donor. The states give rise to additional peaks in current voltage below the threshold for the main resonant peak. These peaks are visible in RTD with essentially any lateral dimension provided the current is measured with sufficient sensitivity.

AB - We demonstrate that it is possible to observe transport through individual tunneling channels due to zero-dimensional states in large area resonant tunneling devices (RTD). These localized states are found to be related to the presence of donor impurities in the vicinity of the quantum well but their binding energies are larger than that due to a single isolated hydrogenic donor. The states give rise to additional peaks in current voltage below the threshold for the main resonant peak. These peaks are visible in RTD with essentially any lateral dimension provided the current is measured with sufficient sensitivity.

KW - quantum-well

U2 - 10.1063/1.111574

DO - 10.1063/1.111574

M3 - Article

SN - 0003-6951

VL - 64

SP - 2563

EP - 2565

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 19

ER -

Zero-dimensional states in macroscopic resonant tunneling devices

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Keywords

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