Preparation and magnetic characterization of the Ba 2 Zn 2-2x Cu 2x Fe 12 O 22 hexagonal ferrites
Preparation and magnetic characterization of the Ba 2 Zn 2-2x Cu 2x Fe 12 O 22 hexagonal ferrites
复制标题
Ba 2 Zn 2-2x Cu 2x Fe 12 O 22 六方晶系铁氧体的制备及磁性能
DOI：
10.1109/tmag.1978.1059812
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发表时间：
1978
影响因子：
2.1
通讯作者：
S. Rinaldi
中科院分区：
文献类型：
--
作者：
G. Albanese;A. Deriu;F. Licci;S. Rinaldi
该系列化合物 (Zn 2-2x Cu 2x )-Y 已通过磁性和穆斯堡尔测量制备并表征。用Cu替代Zn导致居里温度升高、饱和磁化强度降低以及各向异性从平面(Zn 2 -Y)变为轴向(Cu 2 -Y)。穆斯堡尔谱表明，对于所有组合物，超精细场的降低值与降低的温度是相同的。还观察到四极分裂符号变化，证实了从平面各向异性到轴向各向异性的转变。
The series of compounds (Zn 2-2x Cu 2x )-Y have been prepared and characterized via magnetic and Mossbauer measurements. The substitution of Zn with Cu causes an increase in the Curie temperature, a decrease of saturation magnetization and a change of the anisotropy from planar (Zn 2 -Y) to axial (Cu 2 -Y). Mossbauer spectra showed that the reduced values of the hyperfine fields vs the reduced temperature are the same for all the compositions. A quadrupole splitting sign change was also observed confirming the transition from planar to axial anisotropy.