Generalization of the Lindhard dielectric function to include fluctuation effects
Document Type
Article
Publication Date
1-1-1989
Abstract
The random-phase-approximation dielectric function for the homogeneous electron gas has been derived by Lindhard. Here, we generalize this work to include fluctuation effects, and we also study their influence on the Friedel oscillations. In particular, our generalized function is analytic for all wave vectors and frequencies, in contrast to the Lindhard function. © 1989 The American Physical Society.
Publication Source (Journal or Book title)
Physical Review B
First Page
3600
Last Page
3604
Recommended Citation
Hu, G., & O'Connell, R. (1989). Generalization of the Lindhard dielectric function to include fluctuation effects. Physical Review B, 40 (6), 3600-3604. https://doi.org/10.1103/PhysRevB.40.3600