Abstract
The linear density response of inhomogeneous electronic systems is discussed from a density-functional point of view. We derive a local density approximation for the frequency-dependent exchange-correlation potential which is compared with the ‘‘adiabatic’’ expression used in former work.
- Received 1 July 1985
DOI:https://doi.org/10.1103/PhysRevLett.55.2850
©1985 American Physical Society
