資料載入中.....
|
請使用永久網址來引用或連結此文件:
http://ir.ncue.edu.tw/ir/handle/987654321/15370
|
| 題名: | Magnetic Anisotropic Properties in Fe3O4 and CoFe2O4 Ferrite Epitaxy Thin Films |
| 作者: | Horng, Lance;Chern, G.;Chen, M. C.;Kang, P. C.;Lee, D. S. |
| 貢獻者: | 物理學系 |
| 關鍵詞: | Ferrite;Thin films;Verwey transition;Molecular beam epitaxy;Magnetic anisotropy |
| 日期: | 2004-04
|
| 上傳時間: | 2013-02-05T02:18:22Z
|
| 出版者: | Elsevier |
| 摘要: | Epitaxial thin films of Fe3O4 and CoFe2O4 on MgO (0 0 1) substrates were grown by molecular beam epitaxy at low temperature growth process. Magnetization and hysteresis loop of both films were measured to investigate magnetic anisotropic properties at various temperatures. Anomalous magnetic properties are found to be correlated with crystalline, shape, and stress anisotropies. The Fe3O4 film below Verwey structural transition has a change in crystal structure, thus causing many anomalous magnetic properties. Crystalline anisotropy and anomalous magnetic properties are affected substantially by Co ions. The saturation magnetization of Co–ferrite film becomes much lower than that of Fe3O4 film, being very different from the bulks. It indicates that the low temperature growth process could not provide enough energy to have the lowest energy state. |
| 關聯: | Journal of Magnetism and Magnetic Materials, 270(3): 389-396 |
| 顯示於類別: | [物理學系] 期刊論文
|
文件中的檔案:
| 檔案 |
大小 | 格式 | 瀏覽次數 |
|---|
| index.html | 0Kb | HTML | 677 | 檢視/開啟 |
|
在NCUEIR中所有的資料項目都受到原著作權保護.
|
