磁后效

对Fe3O4纳米颗粒和[FePt/Ta]5Ta多层膜不同温度下的磁滞回线、不同磁场下的磁后效曲线等实验结果进行了分析模拟，并得到了各样品的拟合参数。

Studies on Ferromagnetic Hysteresis Curves and Magnetic Aftereffect of [ FePt / Ta ] _5Ta Multilayer Films The experimental data of hysteresis loops at different temperatures and magnetic aftereffect curves at different magnetic fields have been analyzed , and series of useful parameters of the samples were got .

热处理对铁基非晶合金磁后效的影响

Influence of Heat-Treatment on Magnetic After-Effect of Fe Base Amorphous Alloys

引入热起伏磁后效和微涡流两种非线性损耗，对损耗曲线进行了分析计算。

The loss curves were analyzed and calculated by introducing two non-linear losses : the thermal fluctuation magnetic after effect and the micro-eddy current loss .

结果表明，非线性主要来源于热起伏磁后效和为了降低微涡流损耗而引起的磁畴数随频率的变化。

The results show that the non-linearity is mainly attributed to a thermal fluctuation magnetic after effect and a numerical variation of the magnetic domain with frequency .