Evidence for 2kF electron-electron scattering processes in Coulomb drag

M. Kellogg; J. P. Eisenstein; L. N. Pfeiffer; K. W. West

doi:10.1016/S0038-1098(02)00426-X

Evidence for 2k_F electron-electron scattering processes in Coulomb drag

M. Kellogg, J. P. Eisenstein, L. N. Pfeiffer, K. W. West

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

38 Scopus citations

Abstract

Measurements and calculations of Coulomb drag between two low density, closely spaced, two-dimensional electron systems are reported. The experimentally measured drag exceeds that calculated in the random phase approximation by a significant, and density dependent, factor. Studies of the dependence of the measured drag on the difference in density between the two layers clearly demonstrate that previously ignored q = 2 k_F scattering processes can be very important to the drag at low densities and small layer separations.

Original language	English (US)
Pages (from-to)	515-519
Number of pages	5
Journal	Solid State Communications
Volume	123
Issue number	12
DOIs	https://doi.org/10.1016/S0038-1098(02)00426-X
State	Published - Sep 2002
Externally published	Yes

All Science Journal Classification (ASJC) codes

General Chemistry
Condensed Matter Physics
Materials Chemistry

Keywords

A. Two-dimensional electron systems
D. Coulomb drag
D. Electron-electron scattering

Access to Document

10.1016/S0038-1098(02)00426-X

Cite this

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title = "Evidence for 2kF electron-electron scattering processes in Coulomb drag",

abstract = "Measurements and calculations of Coulomb drag between two low density, closely spaced, two-dimensional electron systems are reported. The experimentally measured drag exceeds that calculated in the random phase approximation by a significant, and density dependent, factor. Studies of the dependence of the measured drag on the difference in density between the two layers clearly demonstrate that previously ignored q = 2 kF scattering processes can be very important to the drag at low densities and small layer separations.",

keywords = "A. Two-dimensional electron systems, D. Coulomb drag, D. Electron-electron scattering",

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T1 - Evidence for 2kF electron-electron scattering processes in Coulomb drag

AU - Kellogg, M.

AU - Eisenstein, J. P.

AU - Pfeiffer, L. N.

AU - West, K. W.

PY - 2002/9

Y1 - 2002/9

N2 - Measurements and calculations of Coulomb drag between two low density, closely spaced, two-dimensional electron systems are reported. The experimentally measured drag exceeds that calculated in the random phase approximation by a significant, and density dependent, factor. Studies of the dependence of the measured drag on the difference in density between the two layers clearly demonstrate that previously ignored q = 2 kF scattering processes can be very important to the drag at low densities and small layer separations.

AB - Measurements and calculations of Coulomb drag between two low density, closely spaced, two-dimensional electron systems are reported. The experimentally measured drag exceeds that calculated in the random phase approximation by a significant, and density dependent, factor. Studies of the dependence of the measured drag on the difference in density between the two layers clearly demonstrate that previously ignored q = 2 kF scattering processes can be very important to the drag at low densities and small layer separations.

KW - A. Two-dimensional electron systems

KW - D. Coulomb drag

KW - D. Electron-electron scattering

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