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Hybrid Memory Layer With Low Curie Temperature CoPd/Pd Multilayer for High-Density Magnetic Random-Access Memory Cells
http://hdl.handle.net/2237/00029274
04e8d4d9-0d67-43ed-beb9-722f36c5c00c
| 名前 / ファイル | ライセンス | アクション | |
|---|---|---|---|
INTERMAG (546.2 kB)
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2019-02-12 | |||||
| タイトル | ||||||
| タイトル | Hybrid Memory Layer With Low Curie Temperature CoPd/Pd Multilayer for High-Density Magnetic Random-Access Memory Cells | |||||
| 著者 |
Zhao, W.
× Zhao, W.× Dong, X.× Kimura, T.× Kato, T.× Oshima, D.× Sonobe, Y.× Kawato, Y.× Iwata, S. |
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| 権利 | ||||||
| 権利情報 | “© 2018 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.” | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | Co based multilayer | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | Curie temperature | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | exchange coupling | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | MRAM | |||||
| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | We investigated switching behavior of the hybrid structures consisting of low Curie temperature (TC) and high TC layers. The TC of [Co (0.3 nm)/Pd (1.2 nm)]6 and [Co54Pd46 (0.3 nm)/Pd (1.2 nm)]6 multilayers (MLs) were confirmed to have much higher than 200 °C and around 110 °C, respectively. In the bi-ML hybrid structure with Co/Pd and CoPd/Pd MLs, the two MLs are exchange-coupled at room temperature, and the CoPd/Pd ML was switched following the magnetization of the high T Co/Pd ML at high temperature (~170 °C) at which the CoPd/Pd ML becomes paramagnetic. The tri-layered hybrid structure with a stack of [Co (0.4 nm)/Pt (1.2 nm)]6/[Co48Pd52 (0.3 nm)/Pd (1.2 nm)]3/[Co (0.4 nm)/Pd (1.2 nm)]3 was also investigated. The tri-ML stack showed one-step hysteresis loop at room temperature and two-step loop at higher than 120 °C due to the loss of magnetic order of the intermediate low TC CoPd/Pd ML. From the data of tri-ML stack, the exchange coupled and decoupled situations between Co/Pt and Co/Pd MLs were found to be realized by changing the temperature from room temperature to around 150 °C. | |||||
| 出版者 | ||||||
| 出版者 | IEEE | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 資源タイプ | ||||||
| 資源 | http://purl.org/coar/resource_type/c_6501 | |||||
| タイプ | journal article | |||||
| DOI | ||||||
| 関連識別子 | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | https://doi.org/10.1109/TMAG.2018.2828138 | |||||
| ISSN（print） | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 0018-9464 | |||||
| ISSN（Online） | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 1941-0069 | |||||
| 書誌情報 |
IEEE Transactions on Magnetics 巻 54, 号 11, p. 3401405, 発行日 2018-11 |
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| 著者版フラグ | ||||||
| 値 | author | |||||
