【摘要】 研究了磁性稀土元素 (RE)的种类和含量 (0≤x≤ 3) ,对非晶态 (Co73 Fe2 0 Zr7) 10 0 -x (RE) x 薄膜各向异性的影响 ,并着重探讨该类薄膜中出现的平面单轴各向异性 (Ku)和垂直各向异性 (Kp)的起源问题。薄膜是在外加磁场中溅射而成。当掺入的稀土元素为Nd ,Pr,Dy和Tb时 ,获得了显著的平面单轴各向异性Ku ,且Ku与稀土元素的单离子各向异性密切相关。当稀土元素为Gd和Sm时 ,则会出现双轴各向异性 (Ku和Kp) ,这主要是成膜温度高于临界温度时 ,同时形成了 2种局域性的异质的磁结构。更多还原

【Abstract】 The coherent anisotropy has been studied in amorphous(Co_ 73 Fe_ 20 Zr_ 7 )_ 100-x (RE)_ x films with variety of magnetic rare earth elements,and their concentration(0≤x≤3).The origin of the in-plane uniaxial anisotropy Ku and the perpendicular anisotropy Kp has been discussed.The sputter deposition was performed in a magnetic field.For RE=Nd,Pr,Dy and Tb,the formation of well-defined Ku is related to the single-ion anisotropy of RE atoms.When RE=Gd and Sm,a biaxial anisotropy(Ku and Kp)develops,which is expected to be related to the simultaneous formation of two distinct local structural configurations when the deposition temperature is higher than the critical value.更多还原