Longitudinal dielectric behavior of a two-dimensional electron gas in a uniform magnetic field
- 15 October 1983
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 28 (8), 4387-4396
- https://doi.org/10.1103/physrevb.28.4387
Abstract
A new exact closed-form expression is given for the random-phase-approximation longitudinal polarizability function of a two-dimensional electron gas in a magnetic field. Detailed approximations are given for several limiting cases. Static screening and the nonretarded plasmon dispersion relation are examined in detail.Keywords
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