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

Fingerprint

Optical Kerr effect
Ultrathin films
Magnetic anisotropy
Buffer layers
Kerr effects
Coercive force
coercivity
buffers
anisotropy
augmentation
thin films
Magnetization
Magnetic properties
Annealing
magnetic properties
magnetization
annealing
causes
Direction compound

Keywords

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

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Enhancement of magneto-optical Kerr effect for Co ultra-thin film on Pt(1 1 1) with Ag buffer layer. / Ho, H. Y.; Tzeng, C. L.; Su, C. W.; Shern, C. S.

In: Journal of Magnetism and Magnetic Materials, Vol. 282, No. 1-3, 01.11.2004, p. 69-72.

Research output: Contribution to journalConference article

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AU - Ho, H. Y.

AU - Tzeng, C. L.

AU - Su, C. W.

AU - Shern, C. S.

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N2 - 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.

AB - 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.

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