Low temperature magnetoresistance of GaAs/AlGaAs corrugated-gate wires

A. W. Widjaja; N. Sasaki; K. Yamamoto; Y. Ochiai; K. Ishibashi; J. P. Bird; Y. Aoyagi; T. Sugano; D. K. Ferry

doi:10.1006/spmi.1996.0083

Low temperature magnetoresistance of GaAs/AlGaAs corrugated-gate wires

A. W. Widjaja
, N. Sasaki
, K. Yamamoto
, 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

7 Scopus citations

Abstract

We study quantum interference effects which are observed in the low temperature magnetoresistance of corrugated-gate wires fabricated in the GaAs/AlGaAs modulation-doped heterostructure system. Negative magnetoresistance, which appears over a large range of magnetic field, is observed. In addition, small oscillations in the magnetoresistance are observed. We believe these results are caused by boundary (or geometry-induced) scattering, within the gated wire, which evolves as the nature of the system changes from a quantum-dot array to a wire with weak modulation.

Original language	English
Pages (from-to)	317-322
Number of pages	6
Journal	Superlattices and Microstructures
Volume	20
Issue number	3
DOIs	https://doi.org/10.1006/spmi.1996.0083
State	Published - Oct 1996

Access to Document

10.1006/spmi.1996.0083

Cite this

@article{67af8eb895e04b079d304837a2eb1126,

title = "Low temperature magnetoresistance of GaAs/AlGaAs corrugated-gate wires",

abstract = "We study quantum interference effects which are observed in the low temperature magnetoresistance of corrugated-gate wires fabricated in the GaAs/AlGaAs modulation-doped heterostructure system. Negative magnetoresistance, which appears over a large range of magnetic field, is observed. In addition, small oscillations in the magnetoresistance are observed. We believe these results are caused by boundary (or geometry-induced) scattering, within the gated wire, which evolves as the nature of the system changes from a quantum-dot array to a wire with weak modulation.",

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

year = "1996",

month = oct,

doi = "10.1006/spmi.1996.0083",

language = "English",

volume = "20",

pages = "317--322",

journal = "Superlattices and Microstructures",

issn = "0749-6036",

publisher = "Academic Press Inc.",

number = "3",

}

TY - JOUR

T1 - Low temperature magnetoresistance of GaAs/AlGaAs corrugated-gate wires

AU - Widjaja, A. W.

AU - Sasaki, N.

AU - Yamamoto, K.

AU - Ochiai, Y.

AU - Ishibashi, K.

AU - Bird, J. P.

AU - Aoyagi, Y.

AU - Sugano, T.

AU - Ferry, D. K.

PY - 1996/10

Y1 - 1996/10

N2 - We study quantum interference effects which are observed in the low temperature magnetoresistance of corrugated-gate wires fabricated in the GaAs/AlGaAs modulation-doped heterostructure system. Negative magnetoresistance, which appears over a large range of magnetic field, is observed. In addition, small oscillations in the magnetoresistance are observed. We believe these results are caused by boundary (or geometry-induced) scattering, within the gated wire, which evolves as the nature of the system changes from a quantum-dot array to a wire with weak modulation.

AB - We study quantum interference effects which are observed in the low temperature magnetoresistance of corrugated-gate wires fabricated in the GaAs/AlGaAs modulation-doped heterostructure system. Negative magnetoresistance, which appears over a large range of magnetic field, is observed. In addition, small oscillations in the magnetoresistance are observed. We believe these results are caused by boundary (or geometry-induced) scattering, within the gated wire, which evolves as the nature of the system changes from a quantum-dot array to a wire with weak modulation.

UR - https://www.scopus.com/pages/publications/0029765336

U2 - 10.1006/spmi.1996.0083

DO - 10.1006/spmi.1996.0083

M3 - Article

AN - SCOPUS:0029765336

SN - 0749-6036

VL - 20

SP - 317

EP - 322

JO - Superlattices and Microstructures

JF - Superlattices and Microstructures

IS - 3

ER -

Low temperature magnetoresistance of GaAs/AlGaAs corrugated-gate wires

Abstract

Access to Document

Other files and links

Fingerprint

Cite this