Oscillatory interlayer exchange coupling in epitaxial Co2 MnSiCr Co2 MnSi trilayers

H. Wang; A. Sato; K. Saito; S. Mitani; K. Takanashi; K. Yakushiji

doi:10.1063/1.2719606

Oscillatory interlayer exchange coupling in epitaxial Co2 MnSiCr Co2 MnSi trilayers

H. Wang, A. Sato, K. Saito, S. Mitani, K. Takanashi, K. Yakushiji

Collaborative Research Center on Energy Materials

Research output: Contribution to journal › Article › peer-review

32 Citations (Scopus)

Abstract

Interlayer exchange coupling (IEC) in trilayers, which consist of a full Heusler Co2 MnSi (CMS) phase as ferromagnetic layers separated by a Cr spacer layer, has been investigated. The shape of magnetization loops shows unusual oscillatory behavior with the thickness of Cr. The oscillation period is about 3.3-3.5 nm. The charecteristics of magnetization curves show that 90° coupling plays a dominant role in IEC between CMS layers. Moreover, the strength of 90° coupling turns out to be very high (up to -1.85 ergs cm2) around the first oscillation peak.

Original language	English
Article number	142510
Journal	Applied Physics Letters
Volume	90
Issue number	14
DOIs	https://doi.org/10.1063/1.2719606
Publication status	Published - 2007

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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title = "Oscillatory interlayer exchange coupling in epitaxial Co2 MnSiCr Co2 MnSi trilayers",

abstract = "Interlayer exchange coupling (IEC) in trilayers, which consist of a full Heusler Co2 MnSi (CMS) phase as ferromagnetic layers separated by a Cr spacer layer, has been investigated. The shape of magnetization loops shows unusual oscillatory behavior with the thickness of Cr. The oscillation period is about 3.3-3.5 nm. The charecteristics of magnetization curves show that 90° coupling plays a dominant role in IEC between CMS layers. Moreover, the strength of 90° coupling turns out to be very high (up to -1.85 ergs cm2) around the first oscillation peak.",

author = "H. Wang and A. Sato and K. Saito and S. Mitani and K. Takanashi and K. Yakushiji",

note = "Funding Information: H.W. is grateful to the Post-doctoral fellowship program of JSPS.",

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T1 - Oscillatory interlayer exchange coupling in epitaxial Co2 MnSiCr Co2 MnSi trilayers

AU - Wang, H.

AU - Sato, A.

AU - Saito, K.

AU - Mitani, S.

AU - Takanashi, K.

AU - Yakushiji, K.

N1 - Funding Information: H.W. is grateful to the Post-doctoral fellowship program of JSPS.

PY - 2007

Y1 - 2007

N2 - Interlayer exchange coupling (IEC) in trilayers, which consist of a full Heusler Co2 MnSi (CMS) phase as ferromagnetic layers separated by a Cr spacer layer, has been investigated. The shape of magnetization loops shows unusual oscillatory behavior with the thickness of Cr. The oscillation period is about 3.3-3.5 nm. The charecteristics of magnetization curves show that 90° coupling plays a dominant role in IEC between CMS layers. Moreover, the strength of 90° coupling turns out to be very high (up to -1.85 ergs cm2) around the first oscillation peak.

AB - Interlayer exchange coupling (IEC) in trilayers, which consist of a full Heusler Co2 MnSi (CMS) phase as ferromagnetic layers separated by a Cr spacer layer, has been investigated. The shape of magnetization loops shows unusual oscillatory behavior with the thickness of Cr. The oscillation period is about 3.3-3.5 nm. The charecteristics of magnetization curves show that 90° coupling plays a dominant role in IEC between CMS layers. Moreover, the strength of 90° coupling turns out to be very high (up to -1.85 ergs cm2) around the first oscillation peak.

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Oscillatory interlayer exchange coupling in epitaxial Co2 MnSiCr Co2 MnSi trilayers

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