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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
| 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 |
| 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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