Exchange bias controlled by electric current: Interplay of Joule heating and the induced field

Exchange bias controlled by electric current: Interplay of Joule heating and the induced field

Exchange bias is a unidirectional magnetic anisotropy developed in a bilayer of ferromagnetic and antiferromagnetic layers. Its technical importance as a "fix layer is seen in various spintronic devices. The exchange bias can also be a probe to investigate the antiferromagnetic layer as it part...

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Veröffentlicht in:Japanese Journal of Applied Physics 2016-07, Vol.55 (7), p.70304
Hauptverfasser: Oda, Kent, Moriyama, Takahiro, Kawaguchi, Masashi, Kamiya, Michinari, Tanaka, Kensho, Kim, Kab-Jin, Ono, Teruo
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container_issue 7
container_start_page 70304
container_title Japanese Journal of Applied Physics
container_volume 55
creator Oda, Kent
Moriyama, Takahiro
Kawaguchi, Masashi
Kamiya, Michinari
Tanaka, Kensho
Kim, Kab-Jin
Ono, Teruo
description Exchange bias is a unidirectional magnetic anisotropy developed in a bilayer of ferromagnetic and antiferromagnetic layers. Its technical importance as a "fix layer is seen in various spintronic devices. The exchange bias can also be a probe to investigate the antiferromagnetic layer as it partly reflects the magnetic state of the antiferromagnet. In this work, we investigated the modulation of the exchange bias by a flow of electric current in Pt/Fe50Mn50/FeNi and Cu/Fe50Mn50/FeNi. We show that the exchange bias can be modulated just by applying the current due to interplay among the Joule heating, Ampere field, and current-induced effective field.
doi_str_mv 10.7567/JJAP.55.070304
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title Exchange bias controlled by electric current: Interplay of Joule heating and the induced field
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