ダウンロード数: 621
このアイテムのファイル:
| ファイル | 記述 | サイズ | フォーマット | |
|---|---|---|---|---|
| 1.3575327.pdf | 962.58 kB | Adobe PDF | 見る/開く |
| タイトル: | Large-strain-induced magnetic properties of Co electrodeposited on nanoporous Au |
| 著者: | Hakamada, Masataka    https://orcid.org/0000-0002-8082-2148 (unconfirmed)Hirashima, Fumi Takahashi, Masaki Nakazawa, Takumi Mabuchi, Mamoru https://orcid.org/0000-0002-0894-6306 (unconfirmed) |
| 著者名の別形: | 袴田, 昌高 |
| キーワード: | ab initio calculations cobalt coercive force electrodeposition gold magnetic moments molecular dynamics method nanomagnetics nanoporous materials transmission electron microscopy |
| 発行日: | Apr-2011 |
| 出版者: | American Institute of Physics |
| 誌名: | Journal of Applied Physics |
| 巻: | 109 |
| 号: | 8 |
| 論文番号: | 084315 |
| 抄録: | Nanostructured Co with large lattice extension and contraction was produced by electrodepositing Co on nanoporous Au. The Co deposited showed a low magnetic saturation of 76 emu/g and a high coercivity of 462 Oe. First-principles calculations showed that the magnetic moment of a Co atom is significantly decreased by lattice contraction. Therefore, the noteworthy magnetic properties of the Co deposited are attributed to the large lattice strain. Also, molecular dynamics simulation showed that the lattice extension and contraction of about 10% are generated in the overall Co crystal. This is in agreement with the experimental results of HRTEM observation. The constraint of the movement of Co atoms by the concave structure of nanoporous Au leads to a wide spread of large strain region. |
| 著作権等: | © 2011 American Institute of Physics |
| URI: | http://hdl.handle.net/2433/141813 |
| DOI(出版社版): | 10.1063/1.3575327 |
| 出現コレクション: | 学術雑誌掲載論文等 |
このリポジトリに保管されているアイテムはすべて著作権により保護されています。