Journal
PHYSICAL REVIEW B
Volume 83, Issue 3, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.83.035109
Keywords
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Funding
- US Department of Energy [DE-FG03-84ER-45083]
- CNPq
- FAPERJ, Brazil
- Alexander von Humboldt Foundation
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Within the framework of time-dependent density functional theory combinedwith the Korringa-Kohn-Rostoker Green function formalism, we present a real-space methodology to investigate dynamical magnetic excitations from first principles. We set forth a scheme which enables one to deduce the correct effective Coulomb potential needed to preserve the spin-invariance signature in the dynamical susceptibilities, that is, the Goldstone mode. We use our approach to explore the spin dynamics of 3d adatoms and different dimers deposited on a Cu(001) with emphasis on their decay to particle-hole pairs.
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