The influence of Coulomb interaction in quantum point contacts

T. Morimoto; M. Hemmi; R. Naito; N. Aoki; J. P. Bird; Y. Ochiai

doi:10.1016/j.physe.2006.03.119

The influence of Coulomb interaction in quantum point contacts

T. Morimoto
, M. Hemmi
, R. Naito
, N. Aoki
, J. P. Bird
, Y. Ochiai

Department of Electrical Engineering

Chiba University

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

Abstract

We have investigated the dependence of the 0.7 feature in a quantum point contact on variation of a back-gate voltage, which is used to control the density of the two-dimensional electron gas in its reservoirs. In measurements at 1.8 K, we analyze the dependence of the transconductance to carefully extract the variation of the 0.7 feature with electron density.

Original language	English
Pages (from-to)	557-559
Number of pages	3
Journal	Physica E: Low-Dimensional Systems and Nanostructures
Volume	34
Issue number	1-2
DOIs	https://doi.org/10.1016/j.physe.2006.03.119
State	Published - Aug 2006

Keywords

"0.7 structure"
Kondo effect
Many-body effect
Quantum point contact

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10.1016/j.physe.2006.03.119

Cite this

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title = "The influence of Coulomb interaction in quantum point contacts",

abstract = "We have investigated the dependence of the 0.7 feature in a quantum point contact on variation of a back-gate voltage, which is used to control the density of the two-dimensional electron gas in its reservoirs. In measurements at 1.8 K, we analyze the dependence of the transconductance to carefully extract the variation of the 0.7 feature with electron density.",

keywords = "{"}0.7 structure{"}, Kondo effect, Many-body effect, Quantum point contact",

author = "T. Morimoto and M. Hemmi and R. Naito and N. Aoki and Bird, \{J. P.\} and Y. Ochiai",

year = "2006",

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T1 - The influence of Coulomb interaction in quantum point contacts

AU - Morimoto, T.

AU - Hemmi, M.

AU - Naito, R.

AU - Aoki, N.

AU - Bird, J. P.

AU - Ochiai, Y.

PY - 2006/8

Y1 - 2006/8

N2 - We have investigated the dependence of the 0.7 feature in a quantum point contact on variation of a back-gate voltage, which is used to control the density of the two-dimensional electron gas in its reservoirs. In measurements at 1.8 K, we analyze the dependence of the transconductance to carefully extract the variation of the 0.7 feature with electron density.

AB - We have investigated the dependence of the 0.7 feature in a quantum point contact on variation of a back-gate voltage, which is used to control the density of the two-dimensional electron gas in its reservoirs. In measurements at 1.8 K, we analyze the dependence of the transconductance to carefully extract the variation of the 0.7 feature with electron density.

KW - "0.7 structure"

KW - Kondo effect

KW - Many-body effect

KW - Quantum point contact

UR - https://www.scopus.com/pages/publications/33746393641

U2 - 10.1016/j.physe.2006.03.119

DO - 10.1016/j.physe.2006.03.119

M3 - Article

AN - SCOPUS:33746393641

SN - 1386-9477

VL - 34

SP - 557

EP - 559

JO - Physica E: Low-Dimensional Systems and Nanostructures

JF - Physica E: Low-Dimensional Systems and Nanostructures

IS - 1-2

ER -

The influence of Coulomb interaction in quantum point contacts

Abstract

Keywords

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