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

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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.

Originele taal-2	English
Aantal pagina's	3
Tijdschrift	Physical Review B
Volume	37
Nummer van het tijdschrift	14
DOI's	https://doi.org/10.1103/PhysRevB.37.8534
Status	Published - 1988

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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 = "Houten, \{H. van\} and C.W.J. Beenakker and Loosdrecht, \{P.H.M. van\} and T.J. Thornton and H. Ahmed and M. Pepper and C.T. Foxon and J.J. Harris",

note = "Relation: http://www.rug.nl/natuurkunde/ date\_submitted:2006 Rights: University of Groningen. Materials Science Centre",

year = "1988",

doi = "10.1103/PhysRevB.37.8534",

language = "English",

volume = "37",

journal = "Physical Review B",

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

AU - Houten, H. van

AU - Beenakker, C.W.J.

AU - Loosdrecht, P.H.M. van

AU - Thornton, T.J.

AU - Ahmed, H.

AU - Pepper, M.

AU - Foxon, C.T.

AU - Harris, J.J.

N1 - Relation: http://www.rug.nl/natuurkunde/ date_submitted:2006 Rights: University of Groningen. Materials Science Centre

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.

U2 - 10.1103/PhysRevB.37.8534

DO - 10.1103/PhysRevB.37.8534

M3 - Article

SN - 1550-235X

VL - 37

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

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