Electronic structures and reorientation of perpendicular magnetic anisotropy of Co/Au(111) and Co/Pd(111)

M. Sawada, K. Hayashi, A. Kakizaki

Research output: Contribution to journalArticlepeer-review

Abstract

We have investigated electronic and magnetic properties of Co thin films epitaxially grown on Au(111) and Pd(111) substrates by spin- and angle-resolved photoelectron spectroscopy. In the Co/Au(111) system, the magnetization direction of Co changes from perpendicular to parallel to the surface at about 6 ML. The origin of the reorientation is qualitatively explained by the increasing contribution of Co 3d orbitals perpendicular to the surface. In the Co/Pd(111) system, the reorientation of the magnetization direction occurs at about 4 ML, the origin of which is explained as being due to the contribution of the upper A3 band of Co with increase of film thickness as in the case of the Co/Au(111) system. The stronger hybridization between Co 3d and Pd 4d states in the Co/Pd(111) system causes larger binding energy shifts of the A3 states than in the Co/Au(111) system.

Original languageEnglish
Pages (from-to)865-869
Number of pages5
JournalSurface Review and Letters
Volume9
Issue number2
DOIs
Publication statusPublished - 2002 Apr
Externally publishedYes

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Materials Chemistry

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