Four-terminal magnetoresistance of a two-dimensional electron-gas constriction in the ballistic regime

H. Van Houten, C. W J Beenakker, P. H M Van Loosdrecht, Trevor Thornton, H. Ahmed, M. Pepper, C. T. Foxon, J. J. Harris

Research output: Contribution to journalArticle

112 Citations (Scopus)

Abstract

A novel negative magnetoresistance effect is found in four-terminal measurements of the voltage drop across a short constriction of variable width in a high-mobility two-dimensional electron gas. The effect is interpreted as the suppression by a magnetic field of the geometrical constriction resistance in the ballistic regime. Quantitative agreement with a simple model based on a Landauer-type formula is obtained.

Original languageEnglish (US)
Pages (from-to)8534-8536
Number of pages3
JournalPhysical Review B
Volume37
Issue number14
DOIs
StatePublished - 1988
Externally publishedYes

Fingerprint

Two dimensional electron gas
Magnetoresistance
Ballistics
ballistics
electron gas
constrictions
Magnetic fields
retarding
electric potential
magnetic fields
Voltage drop

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Van Houten, H., Beenakker, C. W. J., Van Loosdrecht, P. H. M., Thornton, T., Ahmed, H., Pepper, M., ... Harris, J. J. (1988). Four-terminal magnetoresistance of a two-dimensional electron-gas constriction in the ballistic regime. Physical Review B, 37(14), 8534-8536. https://doi.org/10.1103/PhysRevB.37.8534

Four-terminal magnetoresistance of a two-dimensional electron-gas constriction in the ballistic regime. / Van Houten, H.; Beenakker, C. W J; Van Loosdrecht, P. H M; Thornton, Trevor; Ahmed, H.; Pepper, M.; Foxon, C. T.; Harris, J. J.

In: Physical Review B, Vol. 37, No. 14, 1988, p. 8534-8536.

Research output: Contribution to journalArticle

Van Houten, H, Beenakker, CWJ, Van Loosdrecht, PHM, Thornton, T, Ahmed, H, Pepper, M, Foxon, CT & Harris, JJ 1988, 'Four-terminal magnetoresistance of a two-dimensional electron-gas constriction in the ballistic regime', Physical Review B, vol. 37, no. 14, pp. 8534-8536. https://doi.org/10.1103/PhysRevB.37.8534
Van Houten, H. ; Beenakker, C. W J ; Van Loosdrecht, P. H M ; Thornton, Trevor ; Ahmed, H. ; Pepper, M. ; Foxon, C. T. ; Harris, J. J. / Four-terminal magnetoresistance of a two-dimensional electron-gas constriction in the ballistic regime. In: Physical Review B. 1988 ; Vol. 37, No. 14. pp. 8534-8536.
@article{38a32a66112046d79ce0a67e4c4126a7,
title = "Four-terminal magnetoresistance of a two-dimensional electron-gas constriction in the ballistic regime",
abstract = "A novel negative magnetoresistance effect is found in four-terminal measurements of the voltage drop across a short constriction of variable width in a high-mobility two-dimensional electron gas. The effect is interpreted as the suppression by a magnetic field of the geometrical constriction resistance in the ballistic regime. Quantitative agreement with a simple model based on a Landauer-type formula is obtained.",
author = "{Van Houten}, H. and Beenakker, {C. W J} and {Van Loosdrecht}, {P. H M} and Trevor Thornton and H. Ahmed and M. Pepper and Foxon, {C. T.} and Harris, {J. J.}",
year = "1988",
doi = "10.1103/PhysRevB.37.8534",
language = "English (US)",
volume = "37",
pages = "8534--8536",
journal = "Physical Review B-Condensed Matter",
issn = "0163-1829",
publisher = "American Institute of Physics Publising LLC",
number = "14",

}

TY - JOUR

T1 - Four-terminal magnetoresistance of a two-dimensional electron-gas constriction in the ballistic regime

AU - Van Houten, H.

AU - Beenakker, C. W J

AU - Van Loosdrecht, P. H M

AU - Thornton, Trevor

AU - Ahmed, H.

AU - Pepper, M.

AU - Foxon, C. T.

AU - Harris, J. J.

PY - 1988

Y1 - 1988

N2 - A novel negative magnetoresistance effect is found in four-terminal measurements of the voltage drop across a short constriction of variable width in a high-mobility two-dimensional electron gas. The effect is interpreted as the suppression by a magnetic field of the geometrical constriction resistance in the ballistic regime. Quantitative agreement with a simple model based on a Landauer-type formula is obtained.

AB - A novel negative magnetoresistance effect is found in four-terminal measurements of the voltage drop across a short constriction of variable width in a high-mobility two-dimensional electron gas. The effect is interpreted as the suppression by a magnetic field of the geometrical constriction resistance in the ballistic regime. Quantitative agreement with a simple model based on a Landauer-type formula is obtained.

UR - http://www.scopus.com/inward/record.url?scp=0009373040&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0009373040&partnerID=8YFLogxK

U2 - 10.1103/PhysRevB.37.8534

DO - 10.1103/PhysRevB.37.8534

M3 - Article

AN - SCOPUS:0009373040

VL - 37

SP - 8534

EP - 8536

JO - Physical Review B-Condensed Matter

JF - Physical Review B-Condensed Matter

SN - 0163-1829

IS - 14

ER -