Correlation Effects on the Coupled Plasmon Modes of a Double Quantum Well

N. P. R. Hill, J. T. Nicholls, E. H. Linfield, M. Pepper, D. A. Ritchie, G. A. C. Jones, Ben Yu-Kuang Hu, and Karsten Flensberg
Phys. Rev. Lett. 78, 2204 – Published 17 March 1997
PDFExport Citation

Abstract

At temperatures comparable to the Fermi temperature, we have measured a plasmon enhanced Coulomb drag in a GaAs/AlGaAs double quantum well electron system. This measurement provides a probe of the many-body corrections to the coupled plasmon modes, and we present a detailed comparison between experiment and theory testing the validity of local field theories. Using a perpendicular magnetic field to raise the magnetoplasmon energy we can induce a crossover to single-particle Coulomb scattering.

  • Received 20 December 1996

DOI:https://doi.org/10.1103/PhysRevLett.78.2204

©1997 American Physical Society

Authors & Affiliations

N. P. R. Hill, J. T. Nicholls, E. H. Linfield, M. Pepper, D. A. Ritchie, and G. A. C. Jones

  • Cavendish Laboratory, University of Cambridge, Madingley Road, Cambridge, CB3 OHE, United Kingdom

Ben Yu-Kuang Hu

  • Mikroelektronik Centret, Danmarks Tekniske Universitet, Bygning 345ø, DK-2800 Lyngby, Denmark

Karsten Flensberg

  • Dansk Institut for Fundamental Metrologi, Bygning 307, Anker Engelundsvej 1, DK-2800 Lyngby, Denmark

References (Subscription Required)

Click to Expand
Issue

Vol. 78, Iss. 11 — 17 March 1997

Reuse & Permissions
Access Options
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review Letters

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×