NbS2*

In layered transition metal dichalcogenides (TMD) MA₂ (M = Ta, Nb, A = S, Se),the weak van der Waals bonding between adjacent layers allows easy intercalation of transition metal atoms. Intercalated magnetic ions, such as T = Fe, Co, Mn, Cr, occupy the vacant octahedral sites between the layers and form an ordered triangular superlattice.This introduces in the magnetic degree of freedom, giving rise to a class of layered magnetic materials with a rich array of magnetic phenomena. Recently, the current-induced switching and magnetic memory effects were reported in FexNbS₂ with x close to 1/3 that exhibits an antiferromagnetic transition at T_N ~ 45 K. This provides a new avenue to realize the spintronic device. From neutron diffraction experiment,we determined a stripe-type order that develops into three magnetic domains, which is strongly coupled to three nematic domains. The magnetic order parameter can be explained with the development of canted moment, which is associated with competing exchange interactions in the frustrated lattice and the effect of Dzyaloshinskii-Moriya interaction because of the lack of the inversion symmetry.