Oxygen vacancy effect on room-temperature ferromagnetism of rutile Co:TiO2 thin films
文献类型：期刊论文
| 作者 | Yan, WS; Sun, ZH ; Pan, ZY; Liu, QH; Yao, T; Wu, ZY; Song, C; Zeng, F; Xie, YN; Hu, TD
|
| 刊名 | APPLIED PHYSICS LETTERS
 |
| 出版日期 | 2009 |
| 卷号 | 94期号:4页码:42508 |
| 关键词 | ab initio calculations annealing cobalt electronic structure ferromagnetic materials impurity states magnetic thin films semimagnetic semiconductors titanium compounds XANES |
| 通讯作者 | [Yan, Wensheng ; Sun, Zhihu ; Pan, Zhiyun ; Liu, Qinghua ; Yao, Tao ; Wu, Ziyu ; Wei, Shiqiang] Univ Sci & Technol China, Natl Synchrotron Radiat Lab, Hefei 230029, Anhui, Peoples R China ; [Song, Cheng ; Zeng, Fei] Tsinghua Univ, Adv Mat Lab, Dept Mat Sci & Engn, Beijing 100084, Peoples R China ; [Xie, Yaning ; Hu, Tiandou] Chinese Acad Sci, Inst High Energy Phys, Beijing Synchrotron Radiat Facil, Beijing 100039, Peoples R China |
| 英文摘要 | The x-ray absorption near edge structure spectroscopy and first-principles calculations were combined to study the local and electronic structures of rutile Co:TiO2 thin film with room-temperature ferromagnetism. It was revealed that the Co(Ti)2+ substituting the Ti site forms Co(Ti)p 2+-V-O complex with the O vacancy generated in the annealing process. The O vacancy induces a spin-split donor impurity band with a t(2g) character within the gap region. We proposed that the strong exchange interaction between the localized carriers captured by O vacancy and the substitutional Co ions leads to the ferromagnetism of the Co:TiO2 thin film. |
| 学科主题 | Physics |
| 类目[WOS] | Physics, Applied |
| 研究领域[WOS] | Physics |
| 原文出处 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000262971800068 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/240606]  |
| 专题 | 高能物理研究所_计算中心 高能物理研究所_实验物理中心 高能物理研究所_多学科研究中心 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Yan, WS,Sun, ZH,Pan, ZY,et al. Oxygen vacancy effect on room-temperature ferromagnetism of rutile Co:TiO2 thin films[J]. APPLIED PHYSICS LETTERS,2009,94(4):42508. |
| APA | Yan, WS.,Sun, ZH.,Pan, ZY.,Liu, QH.,Yao, T.,...&谢亚宁,胡天斗.(2009).Oxygen vacancy effect on room-temperature ferromagnetism of rutile Co:TiO2 thin films.APPLIED PHYSICS LETTERS,94(4),42508. |
| MLA | Yan, WS,et al."Oxygen vacancy effect on room-temperature ferromagnetism of rutile Co:TiO2 thin films".APPLIED PHYSICS LETTERS 94.4(2009):42508. |
入库方式： OAI收割
来源：高能物理研究所
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