Structural and magnetic properties in Heusler-type ferromagnet/ antiferromagnet bilayers

N. Fukatani*, K. Inagaki, T. Miyawaki, K. Ueda, H. Asano

*この研究の対応する著者

研究成果: Article査読

11 被引用数 (Scopus)

抄録

The structure and magnetic properties of Heusler ferromagnet/ antiferromagnet (FM/AFM) bilayers were investigated. Structural characterization revealed that Fe2CrSi/Ru2MnGe bilayers were epitaxially grown with an L21 ordered structure when the Ru2MnGe growth temperature was 573 K. The magnetization curve indicates that exchange bias occurs in the Fe2CrSi/Ru2MnGe bilayers at 77 K. The appearance of an exchange-anisotropy field Hex depends on the growth of Ru2MnGe layer, indicating that the exchange bias originates from the epitaxial Fe2CrSi/Ru2MnGe interface. The exchange anisotropy energy Jk of the Fe2CrSi/Ru2MnGe and Co2MnGe/Ru2MnGe bilayer systems appears to follow a Heisenberg-like exchange coupling model. This suggests that the Cr and Mn interface atoms in the FM layers play significant roles in exchange coupling in the Fe2CrSi/Ru2MnGe and Co2MnGe/Ru 2MnGe bilayer systems, respectively.

本文言語English
論文番号17C103
ジャーナルJournal of Applied Physics
113
17
DOI
出版ステータスPublished - 2013 5月 7
外部発表はい

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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