段化(A/B)_m复合纳米线阵列的矫顽力机理

Coercivity mechanism of segmented (A/B)_m composite nanowire arrays

基于球链模型的对称扇形转动机理,考虑了段间的界面交换耦合作用,对利用电化学沉积方法制备的段化复合磁性纳米线六角阵列的磁滞回线进行了系统的研究,提出了矫顽力随复合段数m的变化规律.指出在这种段化复合纳米线阵列中,段间的交换耦合作用对磁化反转起着重要的影响.

Based on the symmetric fanning mechanism of the sphere-chain model, a systematic study on the hysteresis loops for hexagonal arrays of segmented composite magnetic nanowires fabricated by electrochemical deposition is performed by taking into account the interfacial exchange coupling effect between the segments. The coercivity variation rule with the change of the segments is presented. It is found that the exchange coupling effect between the segments plays an important role for magnetization reversal in the segmented composite nanowire arrays.