Magnetic structure of monatomic Fe chains on Re(0001): Emergence of chiral multispin interactions

A. Lászlóffy, L. Rózsa, K. Palotás, L. Udvardi, L. Szunyogh

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

We present results of first-principles calculations of the magnetic properties of Fe chains deposited on the Re(0001) surface. By increasing the length of the chain, a transition is found from an almost collinear antiferromagnetic state for a five-atom-long chain to a spin spiral state with the rotational plane slightly tilted from the surface of the substrate for the 15-atom-long chain. It is shown that a classical spin model derived from the ab initio calculations containing only two-spin interactions supports opposite chirality of the spin spiral compared to a direct optimization of the spin configuration within the ab initio method. The differences between the results of the two methods can be understood by introducing chiral four-spin interactions in the spin model.

Original languageEnglish
Article number184430
JournalPhysical Review B
Volume99
Issue number18
DOIs
Publication statusPublished - May 22 2019

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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