Internal magnetostatic potentials of magnetization-graded ferromagnetic materials
Internal magnetostatic potentials of magnetization-graded ferromagnetic materials
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DOI：
10.1063/1.2437721
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发表时间：
2007-02
影响因子：
4
通讯作者：
C. Sudakar;R. Naik;G. Lawes;J. Mantese;A. Micheli;G. Srinivasan;S. Alpay
中科院分区：
文献类型：
--
作者：
C. Sudakar;R. Naik;G. Lawes;J. Mantese;A. Micheli;G. Srinivasan;S. Alpay
研究了成分梯度铁磁体中空间变化的磁化强度引起的内磁场。作者讨论了六方晶系铁氧体样品的结果，在2.5毫米的样品厚度的饱和磁化强度为30 emu scing的变化。直流磁化显示出取决于外部磁场相对于分级方向的方向的小的各向异性。在交流磁化率测量中，来自分级感应磁场的这种贡献更加明显。作者发现，对应于30 Oe的内部磁场的磁特性发生了变化，这明显低于预测值约1900 Oe。作者讨论了这种差异的原因。
The authors investigated the internal magnetic field induced by a spatially varying magnetization in a compositionally graded ferromagnet. The authors discuss results on a hexagonal ferrite sample, with a variation in saturation magnetization of 30emu∕g over a sample thickness of 2.5mm. The direct current magnetization shows a small anisotropy depending on the direction of the external magnetic field relative to the grading direction. This contribution from a grading induced magnetic field is more pronounced in alternating current susceptibility measurements. The authors find a shift in magnetic properties corresponding to an internal magnetic field of 30Oe, which is significantly lower than the predicted value of approximately 1900Oe. The authors discuss reasons for this discrepancy.