Lindhard Dielectric Functions with a Finite Electron Lifetime
- 10 May 1969
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 181 (2) , 552-558
- https://doi.org/10.1103/physrev.181.552
Abstract
The finite-electron-lifetime expressions for the longitudinal and transverse dielectric functions of a free-electron gas obtained by Lindhard in the self-consistent-field approximation are examined. It is shown that these results are incorrect, and appropriate expressions are developed for the case where the system can be characterized by a single relaxation time.Keywords
This publication has 3 references indexed in Scilit:
- Optical Properties of Ag and CuPhysical Review B, 1962
- Nonlocal Current-Field Relationship in MetalsPhysical Review B, 1960
- Self-Consistent Field Approach to the Many-Electron ProblemPhysical Review B, 1959