| 脉冲激光沉积法制备的Ni1-xFexO稀磁半导体的结构和磁性研究 |
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| 引用本文： | 翁卫祥,闫文盛,孙治湖,姚 涛,郭玉献,王 峰,韦世强,张国斌,徐彭寿.脉冲激光沉积法制备的Ni1-xFexO稀磁半导体的结构和磁性研究[J].物理学报,2008,57(9):5788-5792. |
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| 作者姓名： | 翁卫祥 闫文盛 孙治湖 姚 涛 郭玉献 王 峰 韦世强 张国斌 徐彭寿 |
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| 作者单位： | 中国科学技术大学国家同步辐射实验室，合肥 230029 |
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| 基金项目： | 国家自然科学基金(批准号：10605024，10404023，10635060)资助的课题. |
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| 摘 要： | 利用脉冲激光沉积方法制备出了具有室温铁磁性的Ni1-xFexO(x=0.02，0.05)稀磁半导体.X射线衍射(XRD)结果表明Ni1-xFexO的晶体结构为NaCl结构，并且在Fe含量较高的Ni0.95Fe0.05O中出现了少量的α-Fe2O3物相.X射线吸收近
关键词：
1-xFexO')" href="#">Ni1-xFexO
XANES
脉冲激光沉积方法
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| 关 键 词： | Ni1-xFexO XANES 脉冲激光沉积方法 |
| 收稿时间： | 2007-12-07 |
Structural and magnetic properties of Ni1-xFex O thin films synthesized by pulsed laser deposition |
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| Weng Wei-Xiang,Yan Wen-Sheng,Sun Zhi-Hu,Yao Tao,Guo Yu-Xian,Wang Feng,Wei Shi-Qiang,Zhang Guo-Bin and Xu Peng-Shou.Structural and magnetic properties of Ni1-xFex O thin films synthesized by pulsed laser deposition[J].Acta Physica Sinica,2008,57(9):5788-5792. |
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| Authors: | Weng Wei-Xiang Yan Wen-Sheng Sun Zhi-Hu Yao Tao Guo Yu-Xian Wang Feng Wei Shi-Qiang Zhang Guo-Bin and Xu Peng-Shou |
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| Abstract: | Pulsed laser deposition (PLD) method was used to fabricate Ni1-xFexO (x=0.02，0.05) dilute magnetic semiconductor thin films with room temperature ferromagnetism. For the Ni0.98Fe0.03O sample with a lower Fe content，the crystalline structures of the Ni1-xFexO films are of the NaCl type as determined by X-ray diffraction. For the Ni0.95Fe0.05O sample with a higher Fe content，some additional weak diffraction peaks corresponding to α-Fe2O3 phase can be observed. From the X-ray absorption near edge structure (XANES) and X-ray photoelectron spectroscopy (XPS)， it is shown that the doped Fe impurities in Ni0.98Fe0.02O are substitutionally incorporated into the NiO host and no secondary phases with room temperature ferromagnetism are found. These results show the intrinsic ferromagnetism of the Ni1-xFexO samples. |
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| Keywords: | Ni1-xFexO thin films XANES pulsed laser deposition method |
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