Detection of antiskyrmions by topological Hall effect in Heusler compounds

التفاصيل البيبلوغرافية
العنوان: Detection of antiskyrmions by topological Hall effect in Heusler compounds
المؤلفون: Kumar, Vivek, Kumar, Nitesh, Reehuis, Manfred, Gayles, Jacob, Sukhanov, A. S., Hoser, Andreas, Damay, Françoise, Shekhar, Chandra, Adler, Peter, Felser, Claudia
المصدر: Phys. Rev. B, 101, 014424 (2020)
سنة النشر: 2020
المجموعة: Condensed Matter
مصطلحات موضوعية: Condensed Matter - Materials Science
الوصف: 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.
نوع الوثيقة: Working Paper
DOI: 10.1103/PhysRevB.101.014424
URL الوصول: http://arxiv.org/abs/2006.05190
رقم الأكسشن: edsarx.2006.05190
قاعدة البيانات: arXiv
الوصف
DOI:10.1103/PhysRevB.101.014424