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

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

Please use this identifier to cite or link to this item: http://hdl.handle.net/10355/7788

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Title: Dynamical exchange-correlation potentials for the electron liquid in the spin channel
Author: Qian, Zhixin; Vignale, Giovanni, 1957-
Keywords: exchange, correlation, dielectric and magnetic response functions
gradient and other corrections
Date: 2003-11-20
Publisher: American Physical Society
Citation: Phys. Rev. B 68, 195113 (2003)
Abstract: The components of the exchange-correlation kernel tensor of an isotropic electron liquid in the spin channel have the structure f xc,2 L,T (q,v) ! q!0 A(v)/q21BL,T(v), 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(v) and BL,T(v) and combine these limiting forms with the Kramers-Kro¨nig dispersion relations to obtain approximations for A(v) and BL,T(v) at all frequencies.
URI: http://hdl.handle.net/10355/7788
ISSN: 1098-0121

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