Fully unconstrained approach to noncollinear magnetism: Application to small Fe clusters

Tatsuki Oda, Alfredo Pasquarello, Roberto Car

Research output: Contribution to journalArticle

254 Scopus citations

Abstract

We develop a plane-wave pseudopotential scheme for noncollinear magnetic structures, based on a generalized local spin-density theory in which the direction of the magnetization is a continuous variable of position. We allow the atomic and magnetic structures to relax simultaneously and self-consistently. Application to small Fe clusters yields noncollinear magnetic structures for Fe3 and Fe5. The components of the magnetization density vary smoothly with position. The spin direction undergoes sizable changes only in the regions of small charge and spin density between the atoms and is generally uniform in the magnetic regions of the atoms.

Original languageEnglish (US)
Pages (from-to)3622-3625
Number of pages4
JournalPhysical review letters
Volume80
Issue number16
DOIs
StatePublished - 1998

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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