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采用磁控共溅射方法制备了不同种子层的(Fe10Co90)80Nd20磁性薄膜,研究了种子层对结构和磁性的影响.结果表明,对于相同厚度的薄膜样品,Ta为种子层的样品没有面内各向异性,矫顽力(Hc)达91Oe(1Oe=79.58A/m),表面磁畴为条纹畴结构,具有弱的垂直各向异性;Cu为种子的样品,Hc为30Oe,样品具有面内磁各向异性,各向异性场为60Oe,磁谱测量显示自然共振频率为2.7GHz.对样品进行真空磁场热处理后静态磁测量结果表明,Ta为种子层的样品的磁性及磁畴结构都没有明显变化;Cu为种子层的样品的Hc随退火温度的升高先减小后增大,表面磁畴由制备态的局域条纹畴变为连续的条纹畴结构.
(Fe10Co90) 80Nd20 magnetic films with different seed layers were prepared by magnetron co-sputtering method and the influence of the seed layer on the structure and magnetic properties was studied. The results show that for the film samples with the same thickness, the samples with Ta as the seed layer have no in-plane Anisotropy, coercivity (Hc) of 91Oe (1Oe = 79.58A / m), the surface domain is a striped domain structure with weak vertical anisotropy; Cu is a seed sample, Hc is 30Oe, the sample has a surface The magnetic anisotropy and anisotropy field were 60 Oe, and the natural resonance frequency was 2.7GHz.The results of static magnetic field measurements after vacuum magnetic field heat treatment showed that the magnetic and magnetic domain structures of the samples with Ta as seed layer Hc decreases with increasing annealing temperature and then increases with the increase of the annealing temperature. The surface magnetic domain changes from the localized streak domain of the prepared state to a continuous striped domain structure.