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Highly dose dependent damping-like spin-orbit torque efficiency in O-implanted Pt
http://hdl.handle.net/10228/00008468
http://hdl.handle.net/10228/000084686faa5f5b-5311-49a6-a6df-e9a608cb508d
| 名前 / ファイル | ライセンス | アクション |
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10381078.pdf (918.1 kB)
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| アイテムタイプ | 学術雑誌論文 = Journal Article(1) | |||||||||||||
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| 公開日 | 2021-09-16 | |||||||||||||
| 資源タイプ | ||||||||||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||||||||||
| 資源タイプ | journal article | |||||||||||||
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| タイトル | Highly dose dependent damping-like spin-orbit torque efficiency in O-implanted Pt | |||||||||||||
| 言語 | ||||||||||||||
| 言語 | eng | |||||||||||||
| 著者 |
Shashank, Utkarsh
× Shashank, Utkarsh× Medwal, Rohit× Nakamura, Yoji× Mohan, John Rex× Nongjai, Razia× Kandasami, Asokan× Rawat, Rajdeep Singh× Asada, Hironori× Gupta, Surbhi× 福間, 康裕
WEKO
25415
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| 内容記述タイプ | Abstract | |||||||||||||
| 内容記述 | Damping-like torque (DLT) arising from the spin Hall effect (SHE) in heavy metals and their alloys has been widely explored for applications in spin–orbit torque MRAM, auto-oscillations, spin waves, and domain wall motion. In conventional materials, the DLT efficiency is limited by intrinsic properties, while attaining strong spin–orbit coupling and higher spin-charge interconversion, with no compromise to electric properties, is the need of the hour. In this Letter, we report more than 3.5 times increase in DLT efficiency, θDL, of modified Pt-oxide by employing a better approach of low energy 20 keV O+ ion implantation. The highest fluence of O+ implantation (1 × 1017 ions cm−2) in Pt enhanced the DLT efficiency from 0.064 to 0.230 and improved the spin transmission for a smaller trade-off in the longitudinal resistivity (ρPt to ρPt−Oxide) from 55.4 to 159.5 μΩ cm, respectively. The transverse spin Hall resistivity, ρSH, is found to be proportional to the square of the longitudinal resistivity, i.e., ρimpSH∝ρ2imp, implying that the enhanced SHE in O-implanted Pt is due to a side-jumping mechanism. Further, no break in the twofold as well as mirror symmetry of torques from the O-implanted Pt allows the use of spin-torque ferromagnetic resonance-based line shape analysis to quantify such torques. | |||||||||||||
| 書誌情報 |
Applied Physics Letters 巻 118, 号 25, p. 252406-1-252406-5, 発行日 2021-06-22 |
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| 出版者 | American Institute of Physics | |||||||||||||
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| 関連タイプ | isVersionOf | |||||||||||||
| 識別子タイプ | DOI | |||||||||||||
| 関連識別子 | https://doi.org/10.1063/5.0054779 | |||||||||||||
| 日本十進分類法 | ||||||||||||||
| 主題Scheme | NDC | |||||||||||||
| 主題 | 425 | |||||||||||||
| NCID | ||||||||||||||
| 収録物識別子タイプ | NCID | |||||||||||||
| 収録物識別子 | AA00543431 | |||||||||||||
| ISSN | ||||||||||||||
| 収録物識別子タイプ | ISSN | |||||||||||||
| 収録物識別子 | 0003-6951 | |||||||||||||
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| 収録物識別子タイプ | ISSN | |||||||||||||
| 収録物識別子 | 1077-3118 | |||||||||||||
| 著作権関連情報 | ||||||||||||||
| 権利情報 | Copyright (c) 2021 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in Appl. Phys. Lett. 118, 252406 (2021) and may be found at https://aip.scitation.org/doi/10.1063/5.0054779. | |||||||||||||
| 出版タイプ | ||||||||||||||
| 出版タイプ | AM | |||||||||||||
| 出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||||||||||
| 査読の有無 | ||||||||||||||
| 値 | yes | |||||||||||||
| 研究者情報 | ||||||||||||||
| URL | https://hyokadb02.jimu.kyutech.ac.jp/html/100000402_ja.html | |||||||||||||
| 論文ID（連携） | ||||||||||||||
| 値 | 10381078 | |||||||||||||
| 連携ID | ||||||||||||||
| 値 | 9302 | |||||||||||||
