论文标题
抗铁磁材料的界面dzyaloshinskii-moriya相互作用
Interfacial Dzyaloshinskii-Moriya Interaction of Antiferromagnetic Materials
论文作者
论文摘要
Ferromagnet（FM）或抗铁磁铁（AFM）与重金属（HM）之间的界面导致反对称交换相互作用称为界面dzyaloshinskii-Moriya相互作用（IDMI），从而有利于非结合性旋转构型。 IDMI负责稳定非连续性自旋纹理，例如在具有大量反转对称性的材料中的天空质量。界面DMI值先前已经在理论上和实验上针对FM/HM接口确定，并且在这项工作中，计算了金属AFM MNPT和绝缘AFM NIO的值。考虑的重金属是W，RE和AU。确定AFM和HM厚度的影响。 MNPT杂层的IDMI值与常见FM材料的IDMI值相当，而NIO的IDMI值较低。
The interface between a ferromagnet (FM) or antiferromagnet (AFM) and a heavy metal (HM) results in an antisymmetric exchange interaction known as the interfacial Dzyaloshinskii-Moriya interaction (iDMI) which favors non-collinear spin configurations. The iDMI is responsible for stabilizing noncollinear spin textures such as skyrmions in materials with bulk inversion symmetry. Interfacial DMI values have been previously determined theoretically and experimentally for FM/HM interfaces, and, in this work, values are calculated for the metallic AFM MnPt and the insulating AFM NiO. The heavy metals considered are W, Re, and Au. The effects of the AFM and HM thicknesses are determined. The iDMI values of the MnPt heterolayers are comparable to those of the common FM materials, and those of NiO are lower.
