Abstract Dynamic magnetic hysteresis loops (DMHL) features of molecular-based magnetic materials and ferrimagnetic systems are investigated by a mixed spin (1/2, 1) model by means of the path probability method (PPM). The PPM contains two rate constants; hence the DMHL features have been studied by using the method with two rate constants. In particular, the effects of the repulsive ( J 0 ) and attractive ( J > 0 ) bilinear nearest-neighbor pair interactions, temperature ( T ), crystal-field interaction ( D ), angular frequency ( ω ) of the oscillating magnetic field and especially the rate constant ( k 2 ), which corresponds to the wheel speed in the melt spinning technique (MST), on the DMHL are investigated. The shapes and areas of hysteresis loops are affective sensibility by these system parameters. We also investigate the magnetic coercive fields and remanents magnetizations as a function ω . We found that the most of our results are in a good agreement with some theoretical and experimental reported works. We also observe the novel and interesting DMHL behaviors for lower values of T , and higher values of ω , k 2 and D .

中文翻译：

---

基于路径概率法的分子磁性材料和亚铁磁性系统的动态磁滞回线特征

摘要 通过混合自旋(1/2, 1)模型，利用路径概率法(PPM)研究了分子磁性材料和亚铁磁体系统的动态磁滞回线(DMHL)特征。PPM 包含两个速率常数；因此，已经使用具有两个速率常数的方法研究了 DMHL 特征。特别是排斥 (J 0 ) 和吸引 ( J > 0 ) 双线性最近邻对相互作用、温度 ( T )、晶体场相互作用 ( D )、振荡磁场的角频率 ( ω ) 和特别是研究了 DMHL 上的速率常数 (k 2 )，它对应于熔纺技术 (MST) 中的轮速。滞后回线的形状和面积是这些系统参数的情感敏感性。我们还研究了矫顽磁场和剩磁作为 ω 的函数。我们发现我们的大部分结果与一些理论和实验报告的工作非常吻合。我们还观察到较低 T 值和较高 ω 、k 2 和 D 值的新颖有趣的 DMHL 行为。