Abstract
The components of the exchange-correlation kernel tensor of an isotropic electron liquid in the spin channel have the structure where L denotes the longitudinal component and T the transverse component relative to the direction of the wave vector In this paper we calculate analytically the high- and low-frequency limits of and and combine these limiting forms with the Kramers-Krönig dispersion relations to obtain approximations for and at all frequencies.
- Received 17 June 2003
DOI:https://doi.org/10.1103/PhysRevB.68.195113
©2003 American Physical Society