Theory of local dynamical magnetic susceptibilities from the Korringa-Kohn-Rostoker Green function method

被引：48

作者：

Lounis, S. ^{[1
]}

Costa, A. T. ^{[1
,2
]}

Muniz, R. B. ^{[2
]}

Mills, D. L. ^{[1
]}

机构：

[1] Univ Calif Irvine, Dept Phys & Astron, Irvine, CA 92697 USA

[2] Univ Fed Fluminense, Inst Fis, BR-24210340 Rio De Janeiro, Brazil

来源：

PHYSICAL REVIEW B | 2011年 / 83卷 / 03期

关键词：

SPIN SUSCEPTIBILITY;

D O I：

10.1103/PhysRevB.83.035109

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

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.

引用

页数：12

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