Electron-electron scattering between closely spaced two-dimensional electron gases

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Electron-electron scattering between closely spaced two-dimensional electron gases. / Hill, N. P.R.; Nicholls, J. T.; Linfield, E. H.; Pepper, M.; Ritchie, D. A.; Hu, Ben Yu Kuang; Flensberg, Karsten.

In: Physica B: Condensed Matter, Vol. 249-251, 17.06.1998, p. 868-872.

Research output: Contribution to journalJournal articlepeer-review

Harvard

Hill, NPR, Nicholls, JT, Linfield, EH, Pepper, M, Ritchie, DA, Hu, BYK & Flensberg, K 1998, 'Electron-electron scattering between closely spaced two-dimensional electron gases', Physica B: Condensed Matter, vol. 249-251, pp. 868-872. https://doi.org/10.1016/S0921-4526(98)00338-X

APA

Hill, N. P. R., Nicholls, J. T., Linfield, E. H., Pepper, M., Ritchie, D. A., Hu, B. Y. K., & Flensberg, K. (1998). Electron-electron scattering between closely spaced two-dimensional electron gases. Physica B: Condensed Matter, 249-251, 868-872. https://doi.org/10.1016/S0921-4526(98)00338-X

Vancouver

Hill NPR, Nicholls JT, Linfield EH, Pepper M, Ritchie DA, Hu BYK et al. Electron-electron scattering between closely spaced two-dimensional electron gases. Physica B: Condensed Matter. 1998 Jun 17;249-251:868-872. https://doi.org/10.1016/S0921-4526(98)00338-X

Author

Hill, N. P.R. ; Nicholls, J. T. ; Linfield, E. H. ; Pepper, M. ; Ritchie, D. A. ; Hu, Ben Yu Kuang ; Flensberg, Karsten. / Electron-electron scattering between closely spaced two-dimensional electron gases. In: Physica B: Condensed Matter. 1998 ; Vol. 249-251. pp. 868-872.

Bibtex

@article{e7124dbcaa4e4c25859624e04ea0e07d,
title = "Electron-electron scattering between closely spaced two-dimensional electron gases",
abstract = "Electron-electron interactions between two closely spaced electron gases can be directly measured by the drag voltage induced in one layer when a current is driven through the other. We have used such drag measurements of GaAs/AlGaAs double quantum wells to probe both the electronic excitations within each layer and the interlayer Coulomb interaction. Two contrasting regimes have been explored. First, at high temperatures we measure an enhanced drag due to the {"}antiscreening{"} of the coupled plasmon modes - a result which is in good agreement with theoretical predictions. Moreover, we show the importance of many-body corrections to the plasmon modes, enabling us to test a local-field description of the correlations. Second, drag measurements in the quantum Hall regime show more pronounced structure than the Shubnikov-de Haas oscillations; the drag is more sensitive to spin splitting at high filling factors and enhances the features seen at low filling factors. We show that the localised states away from the Landau level centre influence the drag.",
keywords = "Frictional drag",
author = "Hill, {N. P.R.} and Nicholls, {J. T.} and Linfield, {E. H.} and M. Pepper and Ritchie, {D. A.} and Hu, {Ben Yu Kuang} and Karsten Flensberg",
year = "1998",
month = jun,
day = "17",
doi = "10.1016/S0921-4526(98)00338-X",
language = "English",
volume = "249-251",
pages = "868--872",
journal = "Physica B: Physics of Condensed Matter & C: Atomic, Molecular and Plasma Physics, Optics",
issn = "0921-4526",
publisher = "Elsevier BV * North-Holland",

}

RIS

TY - JOUR

T1 - Electron-electron scattering between closely spaced two-dimensional electron gases

AU - Hill, N. P.R.

AU - Nicholls, J. T.

AU - Linfield, E. H.

AU - Pepper, M.

AU - Ritchie, D. A.

AU - Hu, Ben Yu Kuang

AU - Flensberg, Karsten

PY - 1998/6/17

Y1 - 1998/6/17

N2 - Electron-electron interactions between two closely spaced electron gases can be directly measured by the drag voltage induced in one layer when a current is driven through the other. We have used such drag measurements of GaAs/AlGaAs double quantum wells to probe both the electronic excitations within each layer and the interlayer Coulomb interaction. Two contrasting regimes have been explored. First, at high temperatures we measure an enhanced drag due to the "antiscreening" of the coupled plasmon modes - a result which is in good agreement with theoretical predictions. Moreover, we show the importance of many-body corrections to the plasmon modes, enabling us to test a local-field description of the correlations. Second, drag measurements in the quantum Hall regime show more pronounced structure than the Shubnikov-de Haas oscillations; the drag is more sensitive to spin splitting at high filling factors and enhances the features seen at low filling factors. We show that the localised states away from the Landau level centre influence the drag.

AB - Electron-electron interactions between two closely spaced electron gases can be directly measured by the drag voltage induced in one layer when a current is driven through the other. We have used such drag measurements of GaAs/AlGaAs double quantum wells to probe both the electronic excitations within each layer and the interlayer Coulomb interaction. Two contrasting regimes have been explored. First, at high temperatures we measure an enhanced drag due to the "antiscreening" of the coupled plasmon modes - a result which is in good agreement with theoretical predictions. Moreover, we show the importance of many-body corrections to the plasmon modes, enabling us to test a local-field description of the correlations. Second, drag measurements in the quantum Hall regime show more pronounced structure than the Shubnikov-de Haas oscillations; the drag is more sensitive to spin splitting at high filling factors and enhances the features seen at low filling factors. We show that the localised states away from the Landau level centre influence the drag.

KW - Frictional drag

UR - http://www.scopus.com/inward/record.url?scp=0032089578&partnerID=8YFLogxK

U2 - 10.1016/S0921-4526(98)00338-X

DO - 10.1016/S0921-4526(98)00338-X

M3 - Journal article

AN - SCOPUS:0032089578

VL - 249-251

SP - 868

EP - 872

JO - Physica B: Physics of Condensed Matter & C: Atomic, Molecular and Plasma Physics, Optics

JF - Physica B: Physics of Condensed Matter & C: Atomic, Molecular and Plasma Physics, Optics

SN - 0921-4526

ER -

ID: 199597565