Ab initio spin dynamics applied to nanoparticles: Canted magnetism of a finite Co chain along a Pt(111) surface step edge

B. Újfalussy, B. Lazarovits, L. Szunyogh, G. M. Stocks, P. Weinberger

Research output: Contribution to journalArticle

41 Citations (Scopus)

Abstract

In order to search for the magnetic ground state of surface nanostructures we extended first principles adiabatic spin dynamics to the case of fully relativistic electron scattering. Our method relies on a constrained density functional theory whereby the evolution of the orientations of the spin-moments results from a semi-classical Landau-Lifshitz equation. This approach is applied to a study of the ground state of a finite Co chain placed along a step edge of a Pt(111) surface. As far as the ground state spin orientation is concerned we obtain excellent agreement with the experiment. Furthermore we observe noncollinearity of the atom-resolved spin and orbital moments. In terms of magnetic force theorem calculations we also demonstrate how a reduction of symmetry leads to the existence of canted magnetic states.

Original languageEnglish
Pages (from-to)100404-1-100404-4
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume70
Issue number10
DOIs
Publication statusPublished - Sep 1 2004

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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