Electron focusing with a double grid in AlGaAs/GaAs heterostructures

K. Nakazato; R. I. Hornsey; R. J. Blaikie; J. R.A. Cleaver; H. Ahmed; T. J. Thornton

doi:10.1063/1.106454

Electron focusing with a double grid in AlGaAs/GaAs heterostructures

K. Nakazato, R. I. Hornsey, R. J. Blaikie, J. R.A. Cleaver, H. Ahmed, T. J. Thornton

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8 Scopus citations

Abstract

Electron focusing has been observed in single- and double-grid structures. The magnetoresistance shows strong maxima and minima with values both above and below the zero field resistance. These are interpreted in terms of electron trajectories which are either backscattered from or transmitted through the grids, with a good match between the measured and calculated magnetic field values for the position of these peaks. The difference in magnetoresistance between the two structures is explained by an internal scattering mechanism which is present only for the double-grid system.

Original language	English (US)
Pages (from-to)	1093-1095
Number of pages	3
Journal	Applied Physics Letters
Volume	60
Issue number	9
DOIs	https://doi.org/10.1063/1.106454
State	Published - 1992
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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10.1063/1.106454

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title = "Electron focusing with a double grid in AlGaAs/GaAs heterostructures",

abstract = "Electron focusing has been observed in single- and double-grid structures. The magnetoresistance shows strong maxima and minima with values both above and below the zero field resistance. These are interpreted in terms of electron trajectories which are either backscattered from or transmitted through the grids, with a good match between the measured and calculated magnetic field values for the position of these peaks. The difference in magnetoresistance between the two structures is explained by an internal scattering mechanism which is present only for the double-grid system.",

author = "K. Nakazato and Hornsey, {R. I.} and Blaikie, {R. J.} and Cleaver, {J. R.A.} and H. Ahmed and Thornton, {T. J.}",

year = "1992",

doi = "10.1063/1.106454",

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volume = "60",

pages = "1093--1095",

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T1 - Electron focusing with a double grid in AlGaAs/GaAs heterostructures

AU - Nakazato, K.

AU - Hornsey, R. I.

AU - Blaikie, R. J.

AU - Cleaver, J. R.A.

AU - Ahmed, H.

AU - Thornton, T. J.

PY - 1992

Y1 - 1992

N2 - Electron focusing has been observed in single- and double-grid structures. The magnetoresistance shows strong maxima and minima with values both above and below the zero field resistance. These are interpreted in terms of electron trajectories which are either backscattered from or transmitted through the grids, with a good match between the measured and calculated magnetic field values for the position of these peaks. The difference in magnetoresistance between the two structures is explained by an internal scattering mechanism which is present only for the double-grid system.

AB - Electron focusing has been observed in single- and double-grid structures. The magnetoresistance shows strong maxima and minima with values both above and below the zero field resistance. These are interpreted in terms of electron trajectories which are either backscattered from or transmitted through the grids, with a good match between the measured and calculated magnetic field values for the position of these peaks. The difference in magnetoresistance between the two structures is explained by an internal scattering mechanism which is present only for the double-grid system.

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DO - 10.1063/1.106454

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EP - 1095

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 9

ER -

Electron focusing with a double grid in AlGaAs/GaAs heterostructures

Abstract

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