Dynamical exchange-correlation potentials for the electron liquid in the spin channel

Zhixin Qian and Giovanni Vignale
Phys. Rev. B 68, 195113 – Published 20 November 2003
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Abstract

The components of the exchange-correlation kernel tensor of an isotropic electron liquid in the spin channel have the structure fxc,L,T(q,ω)q0A(ω)/q2+BL,T(ω), where L denotes the longitudinal component and T the transverse component relative to the direction of the wave vector q. In this paper we calculate analytically the high- and low-frequency limits of A(ω) and BL,T(ω) and combine these limiting forms with the Kramers-Krönig dispersion relations to obtain approximations for A(ω) and BL,T(ω) at all frequencies.

  • Received 17 June 2003

DOI:https://doi.org/10.1103/PhysRevB.68.195113

©2003 American Physical Society

Authors & Affiliations

Zhixin Qian and Giovanni Vignale

  • Department of Physics, University of Missouri, Columbia, Missouri 65211, USA

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Vol. 68, Iss. 19 — 15 November 2003

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