Fig. 1: 2D crystal structure and characteristic resistivity of AgCrSe2.
a Crystal structure of AgCrSe2, space group R3m. The translucent green polyhedra illustrate the tilted and distorted edge-sharing octahedra forming the triangular lattices. b Side view of the unit cell, including the Cr atoms spin that arrange antiferromagnetically along the c direction. c Bottom view of the unit cell showing the ferromagnetically alignment in the ab plane, in this simplification the long wavelength cycloidal periodicity discussed in Baenitz et al.11 is ignored. d Magnetic susceptibility measured with a 1 T magnetic field in the ab plane, orange line, and along the c axis, blue line, and its derivative with respect to temperature in the inset, following the same colour code. The black arrow is pointing to a kink in the magnetic susceptibility, revealing the Néel transition temperature, TN. This is the same temperature represented by the vertical black line depicted in the inset. e Temperature dependence of the resistivity of the AgCrSe2 single crystal in the ab plane, orange line, along the c axis, blue line, and their ratio in the inset, green line.
