Transition from semi-classical to quantum transport in quasi-ballistic wires

Yuichi Ochiai; Kazunuki Yamamoto; Kohji Ishibashi; Jonathan Paul Bird; Yoshinobu Aoyagi; Takuo Sugano; Katsuichi Tankei; Yosuke Nagaoka

doi:10.1143/jjap.35.1358

Transition from semi-classical to quantum transport in quasi-ballistic wires

Yuichi Ochiai
, Kazunuki Yamamoto
, Kohji Ishibashi
, Jonathan Paul Bird
, Yoshinobu Aoyagi
, Takuo Sugano
, Katsuichi Tankei
, Yosuke Nagaoka

Department of Electrical Engineering

Chiba University
RIKEN
Matsusaka University
Kyoto University

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

Abstract

We have found evidence of a transition from the semi-classical to quantum transport in quasi-ballistic narrow wires constructed in 2DEG system of a GaAs/AlGaAs heterojunction. By increasing the ratio of the mean free path to the wire length while keeping the wire width constant, we find a clear offset between the semi-classical and the quantum behaviors in the two-terminal measurement of the wire resisitance. We can explain such an offset by taking into account the transmission probability of electron waves propagating in the wire.

Original language	English
Pages (from-to)	1358-1360
Number of pages	3
Journal	Japanese Journal of Applied Physics, Part 2: Letters
Volume	35
Issue number	2 SUPPL. B
DOIs	https://doi.org/10.1143/jjap.35.1358
State	Published - Feb 1996

Keywords

Conductance quantization
GaAs/AlGaAs heterojunction
Quasi-ballistic conduction
Split-gated quantum wires
Transmission probability

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10.1143/jjap.35.1358

Cite this

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title = "Transition from semi-classical to quantum transport in quasi-ballistic wires",

abstract = "We have found evidence of a transition from the semi-classical to quantum transport in quasi-ballistic narrow wires constructed in 2DEG system of a GaAs/AlGaAs heterojunction. By increasing the ratio of the mean free path to the wire length while keeping the wire width constant, we find a clear offset between the semi-classical and the quantum behaviors in the two-terminal measurement of the wire resisitance. We can explain such an offset by taking into account the transmission probability of electron waves propagating in the wire.",

keywords = "Conductance quantization, GaAs/AlGaAs heterojunction, Quasi-ballistic conduction, Split-gated quantum wires, Transmission probability",

author = "Yuichi Ochiai and Kazunuki Yamamoto and Kohji Ishibashi and Bird, \{Jonathan Paul\} and Yoshinobu Aoyagi and Takuo Sugano and Katsuichi Tankei and Yosuke Nagaoka",

year = "1996",

month = feb,

doi = "10.1143/jjap.35.1358",

language = "English",

volume = "35",

pages = "1358--1360",

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

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TY - JOUR

T1 - Transition from semi-classical to quantum transport in quasi-ballistic wires

AU - Ochiai, Yuichi

AU - Yamamoto, Kazunuki

AU - Ishibashi, Kohji

AU - Bird, Jonathan Paul

AU - Aoyagi, Yoshinobu

AU - Sugano, Takuo

AU - Tankei, Katsuichi

AU - Nagaoka, Yosuke

PY - 1996/2

Y1 - 1996/2

N2 - We have found evidence of a transition from the semi-classical to quantum transport in quasi-ballistic narrow wires constructed in 2DEG system of a GaAs/AlGaAs heterojunction. By increasing the ratio of the mean free path to the wire length while keeping the wire width constant, we find a clear offset between the semi-classical and the quantum behaviors in the two-terminal measurement of the wire resisitance. We can explain such an offset by taking into account the transmission probability of electron waves propagating in the wire.

AB - We have found evidence of a transition from the semi-classical to quantum transport in quasi-ballistic narrow wires constructed in 2DEG system of a GaAs/AlGaAs heterojunction. By increasing the ratio of the mean free path to the wire length while keeping the wire width constant, we find a clear offset between the semi-classical and the quantum behaviors in the two-terminal measurement of the wire resisitance. We can explain such an offset by taking into account the transmission probability of electron waves propagating in the wire.

KW - Conductance quantization

KW - GaAs/AlGaAs heterojunction

KW - Quasi-ballistic conduction

KW - Split-gated quantum wires

KW - Transmission probability

UR - https://www.scopus.com/pages/publications/0030080288

U2 - 10.1143/jjap.35.1358

DO - 10.1143/jjap.35.1358

M3 - Article

AN - SCOPUS:0030080288

SN - 0021-4922

VL - 35

SP - 1358

EP - 1360

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

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

IS - 2 SUPPL. B

ER -

Transition from semi-classical to quantum transport in quasi-ballistic wires

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Keywords

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