Phase breaking of trapped electrons in a gated quantum dot

N. Sasaki; Y. Ohkubo; Y. Ochiai; K. Ishibashi; J. P. Bird; Y. Aoyagi; T. Sugano; D. K. Ferry

doi:10.1006/spmi.1996.0264

Phase breaking of trapped electrons in a gated quantum dot

N. Sasaki
, Y. Ohkubo
, Y. Ochiai
, K. Ishibashi
, J. P. Bird
, Y. Aoyagi
, T. Sugano
, D. K. Ferry

Department of Electrical Engineering

Chiba University
RIKEN
Arizona State University

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

1 Scopus citations

Abstract

We have observed conductance fluctuations due to electron interference in a split-gate quantum dot, fabricated in the two-dimensional electron gas of a GaAs/Al_xGa_1-xAs heterojunction. We have determined the phase breaking time of electrons by two independent analyses, using the correlation field and the amplitude of the fluctuations. Phase breaking times obtained by these distinct approaches are found to differ from each other by a factor of six.

Original language	English
Pages (from-to)	69-74
Number of pages	6
Journal	Superlattices and Microstructures
Volume	22
Issue number	1
DOIs	https://doi.org/10.1006/spmi.1996.0264
State	Published - Jul 1997

Keywords

Conductance fluctuations
GaAs/AlGaAs
Phase breaking time

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10.1006/spmi.1996.0264

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title = "Phase breaking of trapped electrons in a gated quantum dot",

abstract = "We have observed conductance fluctuations due to electron interference in a split-gate quantum dot, fabricated in the two-dimensional electron gas of a GaAs/AlxGa1-xAs heterojunction. We have determined the phase breaking time of electrons by two independent analyses, using the correlation field and the amplitude of the fluctuations. Phase breaking times obtained by these distinct approaches are found to differ from each other by a factor of six.",

keywords = "Conductance fluctuations, GaAs/AlGaAs, Phase breaking time",

author = "N. Sasaki and Y. Ohkubo and Y. Ochiai and K. Ishibashi and Bird, \{J. P.\} and Y. Aoyagi and T. Sugano and Ferry, \{D. K.\}",

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AU - Sasaki, N.

AU - Ohkubo, Y.

AU - Ochiai, Y.

AU - Ishibashi, K.

AU - Bird, J. P.

AU - Aoyagi, Y.

AU - Sugano, T.

AU - Ferry, D. K.

PY - 1997/7

Y1 - 1997/7

N2 - We have observed conductance fluctuations due to electron interference in a split-gate quantum dot, fabricated in the two-dimensional electron gas of a GaAs/AlxGa1-xAs heterojunction. We have determined the phase breaking time of electrons by two independent analyses, using the correlation field and the amplitude of the fluctuations. Phase breaking times obtained by these distinct approaches are found to differ from each other by a factor of six.

AB - We have observed conductance fluctuations due to electron interference in a split-gate quantum dot, fabricated in the two-dimensional electron gas of a GaAs/AlxGa1-xAs heterojunction. We have determined the phase breaking time of electrons by two independent analyses, using the correlation field and the amplitude of the fluctuations. Phase breaking times obtained by these distinct approaches are found to differ from each other by a factor of six.

KW - Conductance fluctuations

KW - GaAs/AlGaAs

KW - Phase breaking time

UR - https://www.scopus.com/pages/publications/0030697795

U2 - 10.1006/spmi.1996.0264

DO - 10.1006/spmi.1996.0264

M3 - Article

AN - SCOPUS:0030697795

SN - 0749-6036

VL - 22

SP - 69

EP - 74

JO - Superlattices and Microstructures

JF - Superlattices and Microstructures

IS - 1

ER -

Phase breaking of trapped electrons in a gated quantum dot

Abstract

Keywords

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