Enhancement of magneto-optical Kerr effect for Co ultra-thin film on Pt(1 1 1) with Ag buffer layer

H. Y. Ho, C. L. Tzeng, C. W. Su, C. S. Shern

Research output: Contribution to journalConference article

4 Citations (Scopus)

Abstract

The magnetic properties of Co/1ML Ag/Pt(111) have been monitored by magneto-optical Kerr effect. We find that the magnetization easy axis changes its direction from the out-of-plane to the in-plane when dCo≥2ML. In the annealing studies of 1ML Co/1ML Ag/Pt(111), the result shows that the enhancement in perpendicular magnetic anisotropy is strongly related to the formation of Co-Pt alloy. The atomic exchange between Co and Ag cause the increase of the coercivity. The possible mechanisms of the enhancement in perpendicular magnetic anisotropy and coercivity are discussed.

Original languageEnglish
Pages (from-to)69-72
Number of pages4
JournalJournal of Magnetism and Magnetic Materials
Volume282
Issue number1-3
DOIs
Publication statusPublished - 2004 Nov 1
EventInternational Symposium on Advanced Magnetic Technologies - Taipei, Taiwan
Duration: 2003 Nov 132003 Nov 16

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Keywords

  • Cobalt
  • Magneto-optic Kerr effect
  • Perpendicular magnetic anisotropy
  • Platinum
  • Silver

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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