Magnetic moment in the top Pt layer of Co/Pt bilayers

M. Suzuki, H. Miyagawa, N. Kawamura, H. Muraoka, Y. Inaba, T. Shimatsu, Y. Sonobe, Y. Isohama, N. Nakamura, N. Ishimatsu, H. Maruyama

研究成果: Conference article査読

2 被引用数 (Scopus)

抄録

The magnetic properties of a few atomic Pt layers on a 15nm thick Co film were studied by x-ray magnetic circular dichroism spectroscopy at the Pt L 2,3 edges. The spin and orbital magnetic moments of the Pt 5d electrons were separated using the magneto-optical sum rules. The Pt magnetization profile as a function of distance from the Co-Pt interface was determined using data from a series of films with various Pt thicknesses. This magnetization profile was approximated by an exponential function with a decay length of 0.41nm, which characterizes the effective range of the magnetic coupling between Co and Pt. The total magnetic moment of a Pt atom at the interface was 0.7μB/atom including a 13% orbital moment. This is discussed in the context of the thermal stability of magnetic recording media capped with a thin layer of Pt.

本文言語English
ページ(範囲)580-582
ページ数3
ジャーナルPhysica Scripta T
T115
DOI
出版ステータスPublished - 2005
イベント12th X-ray Absorption Fine Structure International Conference, XAFS12 - Malmo, Sweden
継続期間: 2003 6 232003 6 27

ASJC Scopus subject areas

  • 原子分子物理学および光学
  • 数理物理学
  • 凝縮系物理学

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