Intercalated C u + ion dynamics in the two-dimensional layered compound C u 0.33 TiS e 2

摘要: $\mathrm{C}{\mathrm{u}}^{+}$ ion behavior is one of the heavily discussed topics in physical and material fields because its unclear high potential materials application. To provide a breakthrough this field, comprehensive research that connects real space reciprocal lattice (momentum) effective. Here, we investigated two-dimensional layered system $\mathrm{C}{\mathrm{u}}_{0.33}\mathrm{TiS}{\mathrm{e}}_{2}$, which shows disorder-order phase transition at 200 K. Inelastic x-ray scattering revealed large change dynamics transition. It expected complex interactions are involved ions intercalated negatively charged $\mathrm{TiS}{\mathrm{e}}_{2}$ layers by charge transfer. However, Monte Carlo simulations using simple combination repulsive forces between well reproduce characteristic temperature dependence anisotropic diffuse scattering. These insights unified understanding controlling system.