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Al₂0₃粒子表面に形成したNiナノ粒子の形態及び磁気特性の熱処理効果
https://doi.org/10.15099/00006513
https://doi.org/10.15099/00006513ac40fea1-7198-4c85-a86c-8c952e101ae7
名前 / ファイル | ライセンス | アクション |
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annual_report28-5.pdf (2.8 MB)
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Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
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公開日 | 2009-05-29 | |||||
タイトル | ||||||
タイトル | Al₂0₃粒子表面に形成したNiナノ粒子の形態及び磁気特性の熱処理効果 | |||||
言語 | ||||||
言語 | jpn | |||||
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 | departmental bulletin paper | |||||
ID登録 | ||||||
ID登録 | 10.15099/00006513 | |||||
ID登録タイプ | JaLC | |||||
著者 |
赤丸, 悟士
× 赤丸, 悟士× 田口, 明× 阿部, 孝之 |
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著者別名 | ||||||
姓名 | Akamaru, Satoshi | |||||
著者別名 | ||||||
姓名 | Taguchi, Akira | |||||
著者別名 | ||||||
姓名 | Abe, Takayuki | |||||
その他(別言語等)のタイトル | ||||||
その他のタイトル | Annealing Effect to Morphology and Magnetic Properties of Ni Nanoparticles Deposited on the Surface of Al₂0₃Particles | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Ni nanoparticles were deposited on Al₂0₃ particles with a diameter of 0.3 μm by the barrel sputterlng technique, and analyzed the prepared samples by X-ray diffraction (XRD) and transmission electron microscopy (TEM). The XRD pattern of the prepared sample did not show any diffraction peak assigned to the Ni metal. On the other hand, both Ni metal and NiO peaks appeared clearly in the XRD pattern of a sample annealed at 873 K for 3 hours. From TEM observations, lt was confirmed that the morphology of Ni deposited on Al₂0₃ particles was not a thin film but nanoparticles with diameters of 2 nm to 20 nm and that the Ni particles partially crystallized. After annealing, Ni particles were aggregated and the average diameter became 24.2 mm. The results of TEM observation were consistent with the results of XRD measurements. The magnetic properties of Ni nanoparticles deposited on Al₂0₃ particles were also examined. The prepared samples showed superparamagnetism, which is one of the characteristic behaviors of magnetic nanoparticles. An exchange-bias effect was also observed, and the effect was reduced by annealing. The magnetic behaviors are explained by the core-Ni shell-NiO structure, which results from the creation of a passivative oxide layer on the Ni nanoparticles in air. | |||||
書誌情報 |
富山大学水素同位体科学研究センター研究報告 = Annual Report of Hydrogen Isotope Research Center, University of Toyama 巻 28, p. 43-49, 発行日 2009-03 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 1346-3675 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA11841872 | |||||
フォーマット | ||||||
内容記述タイプ | Other | |||||
内容記述 | application/pdf | |||||
著者版フラグ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
出版者 | ||||||
出版者 | 富山大学水素同位体科学研究センター | |||||
資源タイプ(DSpace) | ||||||
内容記述タイプ | Other | |||||
内容記述 | Article |