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不同温度下Nd2Fe14B永磁体畴壁中磁矩的转向公式
Rotational Formulas of the Magnetic Moment in the Domain Walls of Nd2Fe14 B Permanent Magnet at Different Temperatures
【摘要】 考虑二级磁晶各向异性常数 ,精确地推导出了自旋重取向温度以上的Nd2 Fe14 B磁体 180°畴壁中磁矩的转向公式和自旋重取向温度以下的Nd2 Fe14 B磁体畴壁中磁矩的转向公式。这些公式也适用于具有类似Nd2 Fe14 B结构和性质的其它永磁体。
【Abstract】 Considering the second order magneto crystalline anisotropy constant, the rotational formulas of the magnetic moment for the 180° domain walls of Nd 2Fe 14 B above and below the spin reorientation temperature have been derived accurately. These formulas are also applicable to other permanent magnets with similar structure and property.
【关键词】 稀土永磁体;
畴壁;
磁矩;
磁晶各向异性;
交换作用;
自旋重取向;
【Key words】 Rare earth permanent magnets; domain walls; magnetic moment; magnetocrystalline anisotropy; exchange interaction; spin reorientation;
【Key words】 Rare earth permanent magnets; domain walls; magnetic moment; magnetocrystalline anisotropy; exchange interaction; spin reorientation;
- 【文献出处】 吉林工学院学报(自然科学版) ,Journal of Jilin Institute of Technology , 编辑部邮箱 ,2001年01期
- 【分类号】O482.54
- 【下载频次】47