Electronic structure and magnetic properties of the hcp Co(0001) surface

Chun Li*, A. J. Freeman, C. L. Fu

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

26 Scopus citations

Abstract

Results of a spin polarized full potential linearized augmented plane wave (FLAPW) study of the hcp Co(0001) surface is reported. The calculated surface magnetic moment (≈1.76μB) is enhanced by ≈7% from the calculated bulk value (≈1.64μB) and by ≈9% from the experimental bulk value (≈1.57μB), a result of the narrowing of the 3d electron bands at the surface. In this system, the surface effect is seen to extend into the second atomic layer below the surface, in contrast with the one layer range found for the non-close-packed cobalt surfaces (e.g., bcc or fcc (001)). As estimated from the total energy calculations, the surface energy of hcp Co(0001) is ≈2 J/m2.

Original languageEnglish (US)
Pages (from-to)134-140
Number of pages7
JournalJournal of Magnetism and Magnetic Materials
Volume94
Issue number1-2
DOIs
StatePublished - Mar 1 1991

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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