Magnetization profile in the MnIr/CoFe exchange bias system

Shuuichi Doi, Naoki Awaji, Kenji Nomura, Toko Hirono, Tetsuya Nakamura, Hiroaki Kimura

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Abstract

The element-specific magnetization profile in the Mn75 Ir25 / Co70 Fe30 exchange bias system was studied by x-ray resonant magnetic reflectometry using circular polarized soft x rays. From the analysis of reflectivities obtained at Co L3 and Mn L3 absorption peak, we found the uncompensated Mn spins located at the MnIr/CoFe interface and in the MnIr bulk region which couples antiferromagnetically and ferromagnetically to the Co spin, respectively. A "pinned" Mn spin which does not rotate with the Co spin was observed at the MnIr/CoFe interface.

Original languageEnglish
Article number232504
JournalApplied Physics Letters
Volume94
Issue number23
DOIs
Publication statusPublished - 2009

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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    Doi, S., Awaji, N., Nomura, K., Hirono, T., Nakamura, T., & Kimura, H. (2009). Magnetization profile in the MnIr/CoFe exchange bias system. Applied Physics Letters, 94(23), [232504]. https://doi.org/10.1063/1.3153144