Numerical simulations of magneto transport in dot array systems at high magnetic fields

J. Oswald; Y. Ochiai; N. Aoki; L. H. Lin; K. Ishibashi; Y. Aoyagi; J. P. Bird; D. K. Ferry

doi:10.1016/S0167-9317(02)00643-3

Numerical simulations of magneto transport in dot array systems at high magnetic fields

J. Oswald, Y. Ochiai, N. Aoki, L. H. Lin, K. Ishibashi, Y. Aoyagi, J. P. Bird, D. K. Ferry

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

1 Scopus citations

Abstract

We use a network model for modeling the magneto transport in quantum dot array systems. We study numerically the role of Fermi level pinning for the Landau level (LL) depopulation at the quantum point contacts which couple the dots. We find that for the case of Fermi level pinning by the 2DEG the resulting sawtooth behavior of the Fermi level leads to deviations from the linear dependence of the LL energies versus magnetic field, if those energies are obtained from depopulation experiments by sweeping the split gate voltage.

Original language	English (US)
Pages (from-to)	91-95
Number of pages	5
Journal	Microelectronic Engineering
Volume	63
Issue number	1-3
DOIs	https://doi.org/10.1016/S0167-9317(02)00643-3
State	Published - Aug 2002

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Condensed Matter Physics
Surfaces, Coatings and Films
Electrical and Electronic Engineering

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10.1016/S0167-9317(02)00643-3

Cite this

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title = "Numerical simulations of magneto transport in dot array systems at high magnetic fields",

abstract = "We use a network model for modeling the magneto transport in quantum dot array systems. We study numerically the role of Fermi level pinning for the Landau level (LL) depopulation at the quantum point contacts which couple the dots. We find that for the case of Fermi level pinning by the 2DEG the resulting sawtooth behavior of the Fermi level leads to deviations from the linear dependence of the LL energies versus magnetic field, if those energies are obtained from depopulation experiments by sweeping the split gate voltage.",

author = "J. Oswald and Y. Ochiai and N. Aoki and Lin, {L. H.} and K. Ishibashi and Y. Aoyagi and Bird, {J. P.} and Ferry, {D. K.}",

note = "Funding Information: J.O. gratefully acknowledges the financial support of the Center for Frontier Electronics and Photonics, Chiba University, 1–33 Yayoi, Inage, Chiba 236-8522, Japan for a 1 month stay as a visiting scientist. Copyright: Copyright 2008 Elsevier B.V., All rights reserved.",

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doi = "10.1016/S0167-9317(02)00643-3",

language = "English (US)",

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T1 - Numerical simulations of magneto transport in dot array systems at high magnetic fields

AU - Oswald, J.

AU - Ochiai, Y.

AU - Aoki, N.

AU - Lin, L. H.

AU - Ishibashi, K.

AU - Aoyagi, Y.

AU - Bird, J. P.

AU - Ferry, D. K.

N1 - Funding Information: J.O. gratefully acknowledges the financial support of the Center for Frontier Electronics and Photonics, Chiba University, 1–33 Yayoi, Inage, Chiba 236-8522, Japan for a 1 month stay as a visiting scientist. Copyright: Copyright 2008 Elsevier B.V., All rights reserved.

PY - 2002/8

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N2 - We use a network model for modeling the magneto transport in quantum dot array systems. We study numerically the role of Fermi level pinning for the Landau level (LL) depopulation at the quantum point contacts which couple the dots. We find that for the case of Fermi level pinning by the 2DEG the resulting sawtooth behavior of the Fermi level leads to deviations from the linear dependence of the LL energies versus magnetic field, if those energies are obtained from depopulation experiments by sweeping the split gate voltage.

AB - We use a network model for modeling the magneto transport in quantum dot array systems. We study numerically the role of Fermi level pinning for the Landau level (LL) depopulation at the quantum point contacts which couple the dots. We find that for the case of Fermi level pinning by the 2DEG the resulting sawtooth behavior of the Fermi level leads to deviations from the linear dependence of the LL energies versus magnetic field, if those energies are obtained from depopulation experiments by sweeping the split gate voltage.

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Numerical simulations of magneto transport in dot array systems at high magnetic fields

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