Ferromagnetic interlayer coupling in C60-Co compound/Ni bilayer structure

Yoshihiro Matsumoto, Seiji Sakai, Shiro Entani, Yasumasa Takagi, Takeshi Nakagawa, Hiroshi Naramoto, Pavel Avramov, Toshihiko Yokoyama

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6 Citations (Scopus)

Abstract

X-ray magnetic circular dichroism (XMCD) spectroscopy was employed to investigate the electronic and magnetic structures of the bilayers of a C 60-Co compound and Ni. A few-several nm thick C60-Co compound layers on the Ni(1 1 1) surface are found to show intense XMCD signals attributed to the localized Co d-spins only with the remanent magnetization of Ni layer. It is suggested that the region of the C60-Co compound within 3 nm from the interface is ferromagnetically coupled with Ni due to the indirect exchange interaction mediated by C60, probably relevant to the interlayer charge transfer.

Original languageEnglish
Pages (from-to)68-72
Number of pages5
JournalChemical Physics Letters
Volume511
Issue number1-3
DOIs
Publication statusPublished - Jul 26 2011
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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