Modeling of Electron Transport in Corrugated Quantum Wires

Yuichi Ochiai; L. Hung Lin; Kohji Ishibashi; Yoshinobu Aoyagi; Takuo Sugano; Nicholas L. Holmberg; Jonathan P. Bird; Drgica Vasileska; Richard Akis; David K. Ferry

doi:10.1143/JJAP.38.325

Modeling of Electron Transport in Corrugated Quantum Wires

Yuichi Ochiai
, L. Hung Lin
, Kohji Ishibashi
, Yoshinobu Aoyagi
, Takuo Sugano
, Nicholas L. Holmberg
, Jonathan P. Bird
, Drgica Vasileska
, Richard Akis
, David K. Ferry

Department of Electrical Engineering

Chiba University
RIKEN
Arizona State University

Research output: Contribution to journal › Conference article › peer-review

2 Scopus citations

Abstract

We have studied the low-temperature magnetotransport in the singly and doubly corrugated wires. The application of a sufficiently negative gate bias might result in the formation of weakly coupled dots. In the structures considered here the corrugations act as weak perturbations on the quantum wire. Compared with the experimental results and the numerical simulations of the transports in these perturbed quantum wires, we show that oscillatory magnetoresistance features, observed in the doubly corrugated wire, arise from back-scattered orbits. The observation of wave function scarring in the quantum simulations is given the open nature of the weakly perturbed quantum wires.

Original language	English
Pages (from-to)	325-327
Number of pages	3
Journal	Japanese Journal of Applied Physics, Part 2: Letters
Volume	38
Issue number	1 B
DOIs	https://doi.org/10.1143/JJAP.38.325
State	Published - 1999
Event	Proceedings of the 1998 International Symposium on Formation, Physics and Device Application of Quantum Dot Structures, QDS-98 - Sapporo, Japan Duration: May 31 1998 → Jun 4 1998

Keywords

Ballistic transport
Coherent back scattering
Dot array system
GaAs/AlGaAs heterojunction
Split-gated quantum wires
Wave function scarring

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10.1143/JJAP.38.325

Cite this

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title = "Modeling of Electron Transport in Corrugated Quantum Wires",

abstract = "We have studied the low-temperature magnetotransport in the singly and doubly corrugated wires. The application of a sufficiently negative gate bias might result in the formation of weakly coupled dots. In the structures considered here the corrugations act as weak perturbations on the quantum wire. Compared with the experimental results and the numerical simulations of the transports in these perturbed quantum wires, we show that oscillatory magnetoresistance features, observed in the doubly corrugated wire, arise from back-scattered orbits. The observation of wave function scarring in the quantum simulations is given the open nature of the weakly perturbed quantum wires.",

keywords = "Ballistic transport, Coherent back scattering, Dot array system, GaAs/AlGaAs heterojunction, Split-gated quantum wires, Wave function scarring",

author = "Yuichi Ochiai and Lin, \{L. Hung\} and Kohji Ishibashi and Yoshinobu Aoyagi and Takuo Sugano and Holmberg, \{Nicholas L.\} and Bird, \{Jonathan P.\} and Drgica Vasileska and Richard Akis and Ferry, \{David K.\}",

year = "1999",

doi = "10.1143/JJAP.38.325",

language = "English",

volume = "38",

pages = "325--327",

journal = "Japanese Journal of Applied Physics, Part 2: Letters",

issn = "0021-4922",

publisher = "Institute of Physics",

number = "1 B",

note = "Proceedings of the 1998 International Symposium on Formation, Physics and Device Application of Quantum Dot Structures, QDS-98 ; Conference date: 31-05-1998 Through 04-06-1998",

}

TY - JOUR

T1 - Modeling of Electron Transport in Corrugated Quantum Wires

AU - Ochiai, Yuichi

AU - Lin, L. Hung

AU - Ishibashi, Kohji

AU - Aoyagi, Yoshinobu

AU - Sugano, Takuo

AU - Holmberg, Nicholas L.

AU - Bird, Jonathan P.

AU - Vasileska, Drgica

AU - Akis, Richard

AU - Ferry, David K.

PY - 1999

Y1 - 1999

N2 - We have studied the low-temperature magnetotransport in the singly and doubly corrugated wires. The application of a sufficiently negative gate bias might result in the formation of weakly coupled dots. In the structures considered here the corrugations act as weak perturbations on the quantum wire. Compared with the experimental results and the numerical simulations of the transports in these perturbed quantum wires, we show that oscillatory magnetoresistance features, observed in the doubly corrugated wire, arise from back-scattered orbits. The observation of wave function scarring in the quantum simulations is given the open nature of the weakly perturbed quantum wires.

AB - We have studied the low-temperature magnetotransport in the singly and doubly corrugated wires. The application of a sufficiently negative gate bias might result in the formation of weakly coupled dots. In the structures considered here the corrugations act as weak perturbations on the quantum wire. Compared with the experimental results and the numerical simulations of the transports in these perturbed quantum wires, we show that oscillatory magnetoresistance features, observed in the doubly corrugated wire, arise from back-scattered orbits. The observation of wave function scarring in the quantum simulations is given the open nature of the weakly perturbed quantum wires.

KW - Ballistic transport

KW - Coherent back scattering

KW - Dot array system

KW - GaAs/AlGaAs heterojunction

KW - Split-gated quantum wires

KW - Wave function scarring

UR - https://www.scopus.com/pages/publications/0032614346

U2 - 10.1143/JJAP.38.325

DO - 10.1143/JJAP.38.325

M3 - Conference article

AN - SCOPUS:0032614346

SN - 0021-4922

VL - 38

SP - 325

EP - 327

JO - Japanese Journal of Applied Physics, Part 2: Letters

JF - Japanese Journal of Applied Physics, Part 2: Letters

IS - 1 B

T2 - Proceedings of the 1998 International Symposium on Formation, Physics and Device Application of Quantum Dot Structures, QDS-98

Y2 - 31 May 1998 through 4 June 1998

ER -

Modeling of Electron Transport in Corrugated Quantum Wires

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Keywords

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