| Presentation | 2016-07-08 Perpendicular magnetic anisotropy induced by oxygen exposure at Co_2FeSi/MgO interfaces Koki Shinohara, Takahiro Suzuki, Yota Takamura, Shigeki Nakagawa, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | We attempted to add perpendicular magnetic anisotropy (PMA) to half-metallic full-Heusler Co_2FeSi (CFS) alloy thin films with potential application in magnetic tunnel junction (MTJ). CFS/MgO stacked structure showed PMA by setting the thickness of CFS below 0.7 nm. It was confirmed PMA is originated from CFS/MgO interfaces. Furthermore, we found that more stable PMA was obtained by introducing oxygen exposure process after the deposition of CFS layer before the preparation of MgO layer. This process is very useful as a method to modify the structure and chemical state at the interface and effective to form ferromagnetic CFS layers with both half-metallic ferromagnetism and PMA. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Full-Heusler alloys / Perpendicular magnetic anisotropy / Half-metallic ferromagnets / Interfacial magnetic anisotropy / Magnetic random access memory |
| Paper # | MR2016-16 |
| Date of Issue | 2016-07-01 (MR) |
| Conference Information | |
| Committee | MR / ITE-MMS |
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| Conference Date | 2016/7/8(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Chuo Univ. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Solid State Memory, Media, etc. |
| Chair | Yoshihiro Okamoto(Ehime Univ.) / Eiichi Miyashita(NHK) |
| Vice Chair | |
| Secretary | (Kogakuin Univ.) / (AIST) |
| Assistant | Kiwamu Kudo(Toshiba) / Shuhei Yoshida(Kinki Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Magnetic Recording / Technical Group on Multi-media Storage |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Perpendicular magnetic anisotropy induced by oxygen exposure at Co_2FeSi/MgO interfaces |
| Sub Title (in English) | |
| Keyword(1) | Full-Heusler alloys |
| Keyword(2) | Perpendicular magnetic anisotropy |
| Keyword(3) | Half-metallic ferromagnets |
| Keyword(4) | Interfacial magnetic anisotropy |
| Keyword(5) | Magnetic random access memory |
| 1st Author's Name | Koki Shinohara |
| 1st Author's Affiliation | Tokyo Institute of Technology(Tokyo Tech.) |
| 2nd Author's Name | Takahiro Suzuki |
| 2nd Author's Affiliation | Tokyo Institute of Technology(Tokyo Tech.) |
| 3rd Author's Name | Yota Takamura |
| 3rd Author's Affiliation | Tokyo Institute of Technology(Tokyo Tech.) |
| 4th Author's Name | Shigeki Nakagawa |
| 4th Author's Affiliation | Tokyo Institute of Technology(Tokyo Tech.) |
| Date | 2016-07-08 |
| Paper # | MR2016-16 |
| Volume (vol) | vol.116 |
| Number (no) | MR-125 |
| Page | pp.pp.19-24(MR), |
| #Pages | 6 |
| Date of Issue | 2016-07-01 (MR) |