Lattice modulations in the double charge density wave system Er5Ir4Si10
Using total and resonant X-ray scattering combined with large-scale structural modeling, we investigate the lattice modulations in Er₅Ir₄Si₁₀, which hosts coexisting incommensurate and commensurate charge-density waves (CDWs). We find that long-range CDW order emerges from a precursor state characterized by local latti...