| 退火对CoFe/IrMn双层膜结构和磁性能的影响 |
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| 引用本文： | 祁先进,李国华,王寅岗,李子全. 退火对CoFe/IrMn双层膜结构和磁性能的影响[J]. 功能材料, 2010, 41(1) |
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| 作者姓名： | 祁先进 李国华 王寅岗 李子全 |
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| 作者单位： | 1. 南京航空航天大学,材料科学与技术学院,江苏,南京210016
2. 保山市发展和改革委员会,云南,保山,678000 |
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| 基金项目： | 国家自然科学基金资助项目(50671048) |
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| 摘 要： | 采用高真空直流磁控溅射的方法制备了结构为//Ta(5nm)/Co75Fe25(5nm)/Ir20Mn80(12nm)/Ta(8nm)的双层膜,通过X射线衍射(XRD)、原子力显微镜(AFM)和振动样品磁强计(VSM)研究了退火对双层膜的结构及磁性能的影响;并通过样品在反向饱和场下停留不同的时间,研究了退火对双层膜的磁稳定性的影响。结果表明,退火使得IrMn(111)织构减弱,表面/界面粗糙度增大,交换偏置场减小,矫顽力增加,退火降低了双层膜的磁稳定性。
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| 关 键 词： | 退火 织构 界面粗糙度 交换偏置场 |
Effect of annealing on texture and magnetic properties of CoFe/IrMn bilayer |
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| QI Xian-jin,LI Guo-hua,WANG Yin-gang,LI Zi-quan. Effect of annealing on texture and magnetic properties of CoFe/IrMn bilayer[J]. Journal of Functional Materials, 2010, 41(1) |
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| Authors: | QI Xian-jin LI Guo-hua WANG Yin-gang LI Zi-quan |
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| Affiliation: | 1. College of Materials Science and Technology;Nanjing University of Aeronautics and Astronautics;Nanjing 210016;China;2. Baoshan Municipal Development and Reform Commission;Baoshan 678000;China |
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| Abstract: | The CoFe/IrMn bilayer was deposited by high vacuum magnetron sputtering on a silicon wafer substrate. The influences of annealing on texture and magnetic properties were investigated by X-ray diffraction (XRD),atomic force microscopy (AFM) and vibrating sample magnetometry (VSM). And the magnetic stability of both as-prepared and annealed CoFe/IrMn bilayers has been investigated by means of holding the film in a negative saturation field. The results show that the texture of IrMn(111)weakens and the surface... |
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| Keywords: | annealing texture interface roughness exchange bias field |
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