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

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机构：

[1] Fukatani, N.

[2] Inagaki, K.

[3] Miyawaki, T.

[4] Ueda, K.

[5] Asano, H.

来源：

Fukatani, N. (fukatani.naoto@c.mbox.nagoya-u.ac.jp) | 1600年 / American Institute of Physics Inc.卷 / 113期

关键词：

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. © 2013 American Institute of Physics;

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摘要：

Conference article (CA)

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