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; T. J. Thornton; H. Ahmed; M. Pepper; C. T. Foxon; J. J. Harris

doi:10.1103/PhysRevB.37.8534

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, T. J. Thornton, H. Ahmed, M. Pepper, C. T. Foxon, J. J. Harris

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

116 Scopus citations

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 language	English (US)
Pages (from-to)	8534-8536
Number of pages	3
Journal	Physical Review B
Volume	37
Issue number	14
DOIs	https://doi.org/10.1103/PhysRevB.37.8534
State	Published - 1988
Externally published	Yes

ASJC Scopus subject areas

Condensed Matter Physics

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10.1103/PhysRevB.37.8534

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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 Thornton, {T. J.} and H. Ahmed and M. Pepper and Foxon, {C. T.} and Harris, {J. J.}",

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doi = "10.1103/PhysRevB.37.8534",

language = "English (US)",

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pages = "8534--8536",

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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, T. J.

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.

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U2 - 10.1103/PhysRevB.37.8534

DO - 10.1103/PhysRevB.37.8534

M3 - Article

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EP - 8536

JO - Physical Review B

JF - Physical Review B

IS - 14

ER -

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

Abstract

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