Published 1975
| Version v1
Journal article
Plasma frequency of the electron gas in layered structures
Description
The plasma frequency of a degenerate electron gas in the layer model of Visscher and Falicov is calculated by means of both the Bohm-Pines canonical transformation method and the equation-of-motion method in the RPA. The dispersion equation for plasmons is obtained in a finite system of n planes with both the cyclic condition and free ends. It is shown that the thermodynamic limit (n → infinite) of the plasma frequency is independent of the boundary conditions. The previous results obtained by various authors in different ways are shown to be certain limits of our result. (orig.)
Abstract (German)
Die Plasmafrequenz eines entarteten Elektronengases im Visscher-Falicov-Schichtenmodell wird einmal mit Hilfe der kanonischen Transformation nach Bohm-Pines und anschliessend mit der Bewegungsgleichungsmethode in der RPA-Naeherung berechnet. Die Dispersionsgleichung fuer Plasmonen erhaelt man in einem endlichen System von n Ebenen mit zyklischer Bedingung und freien Endpunkten. Es wird gezeigt, dass der thermodynamische Grenzwert (n → unendlich) der Plasmafrequenz von Grenzbedingungen unabhaengig ist. Fruehere Ergebnisse anderer Autoren werden als Grenzwerte unserer eigenen Ergebnisse interpretiert. (orig./AK)Additional details
Identifiers
- DOI
- 10.1007/bf01325455;
Publishing Information
- Journal Title
- Zeitschrift f�r Physik B Condensed Matter and Quanta
- Journal Volume
- 22
- Journal Issue
- 1
- Series
- Z. Phys., B.
- Journal Page Range
- 13-19
- ISSN
- 0340-224X
INIS
- Country of Publication
- Germany
- Country of Input or Organization
- Germany
- INIS RN
- 7231584
- Subject category
- S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
- Descriptors DEI
- ELECTRON GAS; LANGMUIR FREQUENCY; PINES-BOHM THEORY; PLASMONS; SOLID-STATE PLASMA
- Descriptors DEC
- PLASMA; QUASI PARTICLES
Optional Information
- Notes
- 6 refs.; Updated automatically by Metadata and Full-Text Enrichment Agent