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Nonstoichiometric FePt Nanoclusters for Heated Dot Magnetic Recording Media
http://hdl.handle.net/10228/00008941
http://hdl.handle.net/10228/0000894100a0952d-c269-4053-8377-392d8d9f56b4
名前 / ファイル | ライセンス | アクション |
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0608__FePt_ACS_Manuscript_Submit_.pdf (2.9 MB)
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Item type | 学術雑誌論文 = Journal Article(1) | |||||||||||
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公開日 | 2022-07-13 | |||||||||||
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資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||||||||
資源タイプ | journal article | |||||||||||
タイトル | ||||||||||||
タイトル | Nonstoichiometric FePt Nanoclusters for Heated Dot Magnetic Recording Media | |||||||||||
言語 | ||||||||||||
言語 | eng | |||||||||||
著者 |
Mohan, John Rex
× Mohan, John Rex× Medwal, Rohit× Gupta, Surbhi× Gogia, Kriti× Vas, Joseph Vimal× Gupta, Rekha× Deka, Angshuman× Rawat, Rajdeep Singh× Subramanian, Annapoorni× 福間, 康裕
WEKO
25415
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抄録 | ||||||||||||
内容記述タイプ | Abstract | |||||||||||
内容記述 | Heated dot magnetic recording (HDMR) provides a path to increase the areal density of magnetic recording media beyond 4 Tb/in2. HDMR-based recording media requires ultrasmall, noninteracting, and thermally stable magnetic dots with high perpendicular anisotropy. We have synthesized nonstoichiometric Fe60Pt40 nanoclusters with and without a Pt buffer layer on silicon substrates, which shows a reduction in chemical ordering temperatures. The Fe60Pt40 nanoclusters retain the hard magnetic phase up to 1023 K with the coercive field of 1.3 Tesla due to the Pt element compensation from the buffer layer. This compensation of Pt was confirmed through X-ray diffraction (XRD) investigations where two distinct phases of Fe3Pt and FePt3 are observed at elevated annealing temperatures. Micromagnetic simulations were performed to understand the effect of magnetic anisotropy, dipolar interaction, and exchange coupling between the soft magnetic Fe3Pt and hard magnetic FePt. The results imply that nonstoichiometric Fe60Pt40 with the Pt buffer layer facilitates low chemical ordering temperatures retaining the high perpendicular anisotropy with minimal noninteracting behavior, suitable for HDMR. | |||||||||||
書誌情報 |
ACS Applied Nano Materials 巻 4, 号 7, p. 7079-7085, 発行日 2021-07-13 |
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出版社 | ||||||||||||
出版者 | American Chemical Society | |||||||||||
DOI | ||||||||||||
関連タイプ | isVersionOf | |||||||||||
識別子タイプ | DOI | |||||||||||
関連識別子 | https://doi.org/10.1021/acsanm.1c01085 | |||||||||||
ISSN | ||||||||||||
収録物識別子タイプ | ISSN | |||||||||||
収録物識別子 | 2574-0970 | |||||||||||
著作権関連情報 | ||||||||||||
権利情報 | This document is the unedited author's version of a Submitted Work that was subsequently accepted for publication in ACS Applied Nano Materials, copyright © American Chemical Society after peer review. To access the final edited and published work, see https://pubs.acs.org/doi/10.1021/acsanm.1c01085. | |||||||||||
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 | ||||||||||||
https://hyokadb02.jimu.kyutech.ac.jp/html/100000402_ja.html | ||||||||||||
論文ID(連携) | ||||||||||||
10381080 | ||||||||||||
連携ID | ||||||||||||
9303 | ||||||||||||
資料タイプ | ||||||||||||
内容記述タイプ | Other | |||||||||||
内容記述 | Journal Article | |||||||||||
著者別名 | ||||||||||||
姓名 | Mohan, J.R. | |||||||||||
著者別名 | ||||||||||||
姓名 | Medwal, R. | |||||||||||
著者別名 | ||||||||||||
姓名 | Gupta, S. | |||||||||||
著者別名 | ||||||||||||
姓名 | Gogia, K. | |||||||||||
著者別名 | ||||||||||||
姓名 | Vas, J.V. | |||||||||||
著者別名 | ||||||||||||
姓名 | Gupta, R. | |||||||||||
著者別名 | ||||||||||||
姓名 | Deka, A. | |||||||||||
著者別名 | ||||||||||||
姓名 | Rawat, R.S. | |||||||||||
著者別名 | ||||||||||||
姓名 | Subramanian, A. | |||||||||||
著者別名 | ||||||||||||
姓名 | Fukuma, Yasuhiro | |||||||||||
言語 | en | |||||||||||
姓名 | 福間, 康裕 | |||||||||||
言語 | ja | |||||||||||
姓名 | フクマ, ヤスヒロ | |||||||||||
言語 | ja-Kana | |||||||||||
著者所属 | ||||||||||||
Kyushu Institute of Technology | ||||||||||||
著者所属 | ||||||||||||
Nanyang Technological University | ||||||||||||
著者所属 | ||||||||||||
Kyushu Institute of Technology; Nanyang Technological University | ||||||||||||
著者所属 | ||||||||||||
Weill Cornell Medicine | ||||||||||||
著者所属 | ||||||||||||
Nanyang Technological University | ||||||||||||
著者所属 | ||||||||||||
University of Delhi | ||||||||||||
著者所属 | ||||||||||||
Kyushu Institute of Technology | ||||||||||||
著者所属 | ||||||||||||
Nanyang Technological University | ||||||||||||
著者所属 | ||||||||||||
University of Delhi | ||||||||||||
著者所属 | ||||||||||||
Kyushu Institute of Technology |