论文标题
Dzyaloshinskii-Moriya互动中纳米晶型铁磁体中的通用作用
Generic role of the Dzyaloshinskii-Moriya interaction in nanocrystalline ferromagnets
论文作者
论文摘要
在最近的实验性偏振中子结果的激励中，我们提出了纳米晶型terbium中界面（间元）dzyaloshinskii-moriya相互作用（DMI）的数值微磁性研究。我们证明，在偏光中子散射实验中看到的不对称阳性阴性模式形成了DMI诱导的相邻纳米之间的旋转错位。对到序过程的分析表明，DMI对多晶缺陷材料的宏观磁参数的一般影响。
Motivated by recent experimental polarized neutron results, we present a numerical micromagnetic study of the interfacial (intergrain) Dzyaloshinskii-Moriya interaction (DMI) in nanocrystalline terbium. We demonstrate that the DMI-induced spin misalignment between adjacent nanograins is the reason for the formation of the asymmetric positive-negative pattern seen in polarized neutron scattering experiments. Analysis of the remagnetization process suggests the generic impact of the DMI on the macroscopic magnetic parameters of polycrystalline defect-rich materials.
