fig6

Figure 6. (A) Structures of vdW CrX₃^[123]. (B) Schematic diagram of super-exchange and direct exchange. (C) Spin displacement of two sublattice spins at the right-handed chiral wave in CrI₃, (D) spin-wave excitations at T = 52 K and (E) temperature dependencies of the stiffness of the acoustic mode of CrI₃^[126]. (F) 2D charge density difference for a certain plane. (G) Schematic diagram of exchange mechanism and d-orbit energy level splitting of V-V bonding. (H) On-site energies for d orbitals of nearest-neighbor V atoms with different strains in monolayer VICl^[17].