采用射频磁控溅射法制备了TbCo非晶垂直磁化膜,并就制备工艺及参数对其磁各向异性能的影响进行了研究.结果表明:磁性层组分、溅射气压、基片偏压以及后退火温度对TbCo非晶垂直磁化膜的磁各向异性能都有不同程度的影响.当Tb含量为30%左右,或溅射气压为0.53 Pa时,TbCo薄膜的磁各向异性能Ku会呈现极大值.基片偏压超过-60V以后,TbCo薄膜Ku值开始显著上升,但超过-120 V以后,Ku值开始趋向饱和.200 ℃以上真空退火会使TbCo薄膜磁各向异性能Ku值明显下降.产生这些现象的原因与薄膜微观结构的改变有关.
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