Structural and magnetic properties of pseudoternary Nd2(Fe1-xCux)14B compounds
Structural and magnetic properties of pseudoternary Nd2(Fe1-xCux)14B compounds
复制标题
准三元Nd2(Fe1-xCux)14B化合物的结构和磁性能
DOI：
10.1063/1.340969
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发表时间：
1988
影响因子：
3.2
通讯作者：
H. Ku
中科院分区：
文献类型：
--
作者：
S. Chen;J. Duh;H. Ku
对新的准三元化合物 Nd2(Fe1−xCux)14B 进行了磁性和晶体学测量，以研究 Cu 取代后磁性的系统变化。 X射线粉末衍射数据表明，四方Nd2Fe14B型相仅在x≤0.05时存在。用非磁性Cu部分替代Fe显着降低了饱和磁化强度，而铁磁性居里温度TC变化很小。低温自旋取向温度（Tsr）从x=0.00时的135 K降低到x=0.03时的130 K和x=0.05时的122 K，并且易磁化方向相对于四方晶系c轴的倾斜角相应减小。
Magnetic and crystallographic measurements have been made on new pseudoternary compounds Nd2(Fe1−xCux)14B in order to study the systematic variation of magnetic properties with Cu substitution. X‐ray powder diffraction data indicate that the tetragonal Nd2Fe14B‐type phase exists only for x≤0.05. Partial replacement of Fe by nonmagnetic Cu significantly decreases the saturation magnetization value with little change in ferromagnetic Curie temperature TC. Low‐temperature spin orientation temperature (Tsr) decreases from 135 K for x=0.00 to 130 K for x=0.03, and 122 K for x=0.05, and the tilt angle of the easy magnetization direction from the tetragonal c axis decreases accordingly.