论文标题
通过霍斯勒化合物中的拓扑厅效应检测Antiskyrmions
Detection of antiskyrmions by topological Hall effect in Heusler compounds
论文作者
论文摘要
Heusler化合物具有$ \ textIt {d} $$ {} _ {2d} $ Crystal Symmetry最近由于稳定的涡旋式旋转纹理而被称为Antiskyrmions的薄片中，引起了很多关注。 Mn $ {} _ {1.4} $ pt $ {} _ {0.9} $ pd $ {} _ {0.1} $ sn如nayak $ \ textit {et al。} $ [nature（nature（nature）（伦敦（伦敦）548，561（2017））] Here we show that bulk Mn${}_{1.4}$Pt${}_{0.9}$Pd${}_{0.1}$Sn undergoes a spin-reorientation transition from a collinear ferromagnetic to a noncollinear configuration of Mn moments below 135 K, which is accompanied by the emergence of a topological Hall effect.我们通过更改固有的磁性和自旋纹理来调整PD和RH替换的Mn $ {} _ {1.4} $ PTSN Heusler化合物的拓扑厅效应。当前系统的一个独特特征是观察零场拓扑厅的电阻率，标志变化表明Antiskyrmions的强烈形成。
Heusler compounds having $\textit{D}$${}_{2d}$ crystal symmetry gained much attention recently due to the stabilization of a vortex-like spin texture called antiskyrmions in thin lamellae of Mn${}_{1.4}$Pt${}_{0.9}$Pd${}_{0.1}$Sn as reported in the work of Nayak $\textit{et al.}$ [Nature (London) 548, 561 (2017)]. Here we show that bulk Mn${}_{1.4}$Pt${}_{0.9}$Pd${}_{0.1}$Sn undergoes a spin-reorientation transition from a collinear ferromagnetic to a noncollinear configuration of Mn moments below 135 K, which is accompanied by the emergence of a topological Hall effect. We tune the topological Hall effect in Pd and Rh substituted Mn${}_{1.4}$PtSn Heusler compounds by changing the intrinsic magnetic properties and spin textures. A unique feature of the present system is the observation of a zero-field topological Hall resistivity with a sign change which indicates the robust formation of antiskyrmions.
