Faraday rotation measurement around Ni M2,3 edges using A1/YB6 multilayer polarizers

Tadashi Hatano, Weibing Hu, Katsuhiko Saito, Makoto Watanabe

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

We constructed a polarimeter for Faraday rotation measurements around the M2,3 absorption edges in Ni, which consists of a transmission polarizer, a reflection analyzer and a magnetic circuit made of Sm-Co permanent magnet. The polarizer and analyzer are Al/YB6 multilayers. The polarizer is used to improve the degree of linear polarization of the monochromatized synchrotron radiation. The Faraday rotation angle around the M2,3 absorption edges in Ni was obtained reproducibly. The rotation angle was almost proportional to the sample thickness. This means that the Faraday rotation spectra are scarcely affected by surface pollution and reflect bulk properties. The measured value of rotation angle was somewhat larger than the value obtained by Kramers-Krönig transform of an MCD spectrum. This may be attributed to be the surface effect or insufficiency of the degree of circular polarization in MCD experiments.

Original languageEnglish
Pages (from-to)287-291
Number of pages5
JournalJournal of Electron Spectroscopy and Related Phenomena
Volume101-103
DOIs
Publication statusPublished - 1999

Keywords

  • Faraday rotation
  • M absorption
  • Multilayer polarizer
  • Ni film

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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