Plasma Frequency of the Electron Gas in Layered Structures
- 1 September 1973
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 8 (5) , 1958-1961
- https://doi.org/10.1103/physrevb.8.1958
Abstract
The approximations necessary to obtain the model of Visscher and Falicov for a layered electron gas are discussed. The Hamiltonian is generalized to include the electron tunneling between adjacent planes. The plasma frequency is calculated in the random-phase approximation using equation-of-motion method. It shows a very strong anisotropy, depending on the angle between the wave vector of the plasma wave and the perpendicular direction to the layered structure.Keywords
This publication has 6 references indexed in Scilit:
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- Polarizability of a Two-Dimensional Electron GasPhysical Review Letters, 1967
- Theory of Electron TunnelingReviews of Modern Physics, 1964
- Tunneling from a Many-Particle Point of ViewPhysical Review B, 1963
- Superconductive TunnelingPhysical Review Letters, 1962
- Self-Consistent Field Approach to the Many-Electron ProblemPhysical Review B, 1959