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γ′-Fe₄N薄膜的制备及其磁性

Preparation and Magnetic Properties of γ′-Fe₄N Thin Films

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【Author】 WANG Li-li1,2,ZHI Wen2,ZHAO Li-jun3,WANG Xin1,MA Nan1,JIN Dan-hong1,ZHENG Wei-tao1(1.College of Materials Science and Engineering,Jilin University,Changchun 130012,China;2.College of Sciences,Changchun University,Changchun 130022,China;3.College of Special Education,Changchun University,Changchun 130022,China)

【机构】吉林大学材料科学与工程学院；长春大学理学院；长春大学特殊教育学院；吉林大学材料科学与工程学院长春130012；长春130022；长春130012；

【摘要】采用直流磁控溅射方法,以Ar/N2为放电气体(N2/(Ar+N2)=10%),在玻璃和NaCl(100)单晶片上分别沉积获得Fe-N薄膜样品.利用X射线衍射(XRD)、原子力显微镜(AFM)和超导量子干涉仪(SQUID)对样品的结构、形貌和磁性能进行分析,研究基片和基片温度等条件对薄膜的影响.结果表明,以NaCl单晶为基片获得单相γ′-Fe4N薄膜,与玻璃基片相比可降低其生成的基片温度并可扩大形成温度的范围,且比饱和磁化强度略有增大.更多还原

【Abstract】 The Fe-N thin films were deposited on single crystal NaCl(100) and glass substrates via DC magnetron sputtering with an Ar/N2 gas mixture(N2/(Ar+N2)=10%) as the discharging gas.The structure, morphology and magnetic properties of the films were characterized by means of X-ray diffraction(XRD),Atomic force microscope(AFM) and superconducting quantum interference device(SQUID).The effects of substrate and substrate temperature on the structures and magnetic properties of the thin films were investigated.It was shown that the substrate temperature of single phase γ′-Fe4N deposited on NaCl(100) substrate was lower than that on glass substrate.The formation temperature scope and magnetization of single phase γ′Fe4N on NaCl(100) substrate are all increased.更多还原