Spin Currents and Spin Dynamics in Time-Dependent Density-Functional Theory

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Spin Currents and Spin Dynamics in Time-Dependent Density-Functional Theory

Please use this identifier to cite or link to this item: http://hdl.handle.net/10355/7917

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Title: Spin Currents and Spin Dynamics in Time-Dependent Density-Functional Theory
Author: Capelle, K.; Vignale, Giovanni, 1957-; Gyorffy, B. L.
Keywords: spin currents
time-dependent spin-density-functional theory
Date: 2001-10-26
Publisher: American Physical Society
Citation: Phys. Rev. Lett. 87, 206403 (2001)
Abstract: We derive and analyze the equation of motion for the spin degrees of freedom within time-dependent spin-density-functional theory (TD-SDFT). The results are (i) a prescription for obtaining many-body corrections to the single-particle spin currents from the Kohn-Sham equation of TD-SDFT, (ii) the existence of an exchange-correlation (xc) torque within TD-SDFT, (iii) a prescription for calculating, from TD-SDFT, the torque exerted by spin currents on the spin magnetization, (iv) a novel exact constraint on approximate xc functionals, and (v) the discovery of serious deficiencies of popular approximations to TD-SDFT when applied to spin dynamics.
URI: http://hdl.handle.net/10355/7917
ISSN: 0031-9007

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