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中文摘要：
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射线吸收近边结构谱（XANES）和X射线光电子能谱（XPS）进一步表明了掺杂的Fe原子替代NiO晶格中Ni原子,并且样品中不存在能够诱导室温磁性的第二相.这些研究结果表明Ni1-xFexO的室温铁磁性是本征的.
英文摘要：
Pulsed laser deposition （PLD） method was used to fabricate Ni1 - x Fex O （ x = 0. 02, 0. 05） dilute magnetic semiconductor thin films with room temperature ferromagnetism. For the Ni0.98 Fe0.03 O sample with a lower Fe content, the crystalline structures of the Ni1- x Fex O films are of the NaCl type as determined by X-ray diffraction. For the Ni0.95 Fe0.05 O 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 - x Fex O samples.
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