Magnetorefractive effect for Co/Ru multilayer film with antiferro-magnetically interlayer exchange coupling

Haruhiko Sato, Shin Saito, Shota Mizuno, Koichi Akahane, Hironaga Uchida

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


The Spin-dependent scattering of conduction electron in metallic magnetic multilayers was investigated to reveal the optical properties which corresponded to the magnetization state. From the measurement of magnetorefractive effect in antiferro-magnetically exchange coupled Co/Ru multilayers, it was found that (1) The transmittance varied around 1% at wavelength of 1550 nm during the parallel/antiparallel spin alignment changes, (2) As a result of number of repetition and Co thickness for the multilayers, transmittance difference between the parallel and antiparallel spin alignment states had trade-off relationship with the magnitude of transmittance, (3) Asymmetric Co/Ru/Co stacking structure brought different interlayer exchange coupling field in each layer, which resulted in magnetic field sensitive transmittance.

Original languageEnglish
Pages (from-to)174-179
Number of pages6
JournalIEEJ Transactions on Fundamentals and Materials
Issue number4
Publication statusPublished - 2016


  • Co/Ru multilayers film
  • Infrared optical properties
  • Magnetic multilayer with interlayer exchange coupling
  • Magnetorefractive effect
  • Spin-dependent scattering
  • Transmission measurement under magnetic field


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