Temperature dependence of nonlinear susceptibility of Ni75.3 Pt1.3Mn23.4 shows a singular peak irrelevant to the spin freezing and ferromagnetic transitions. The peak is more pronounced than that observed in Ni76.6Mn23.4, while it is not observed in the Pd-doped sample Ni75.3Pd1.6Mn23.1. The difference in magnetic singularity correlates with the magnitude of magnetic anisotropy. This characteristic feature can be interpreted in terms of a possible chiral spin ordering appearing in Ni(Pt, Pd)Mn.
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics