Magnetic rotation spectra of Co/Pt and Co/Cu multilayers in 50-90 eV region

K. Saito, M. Igeta, T. Ejima, T. Hatano, A. Arai, M. Watanabe

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

Faraday rotation spectra of Co/Pt multilayers were obtained in the region including Co M2,3 and Pt N6,7 absorption edges by using multilayer polarizers, and were transformed to magnetic circular dichroism (MCD) spectra by Kramers-Krönig analysis (KKA). From the dependence of the rotation angle on the layer thickness, it was suggested that the magnetization of Co tends to be uniform in Co layers and that of Pt is localized at Co/Pt interfaces. The orbital magnetic moment of Co was estimated to be about 0.17 μB/Co. The similarity of electronic states around magnetized Pt site between Co/Pt multilayers and CoPt3 alloy is suggested by the resemblance of the MCD spectra of both materials around Pt N6,7 edges. In addition, magnetic Kerr rotation of Co/Cu multilayer was measured and was observed around Co M2,3 and Cu M2,3 absorption edges.

Original languageEnglish
Pages (from-to)757-760
Number of pages4
JournalJournal of Electron Spectroscopy and Related Phenomena
Volume144-147
DOIs
Publication statusPublished - 2005 Jun

Keywords

  • Co/Cu multilayer
  • Co/Pt multilayer
  • Extreme ultraviolet
  • Faraday rotation
  • Kerr rotation
  • MCD
  • Magnetic moment
  • Magneto-optics
  • Multilayer polarizer

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Radiation
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Spectroscopy
  • Physical and Theoretical Chemistry

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