Calculations 2 Charge density 2 Charge density wave formation 2 Charge density waves 2 Charge-density-wave systems 2 Electron susceptibility 2 Electron-phonon interactions 2 First-principles calculation 2 Layered transition metal dichalcogenides 2 Metallurgy 2 Metals 2 Phonons 2 Response functions 2 Transition metal dichalcogenides 2 Transition metals 2 Transition metals and alloys 2 chargedensity wave systems 2 dielectic response function 2 transition metals and alloys 2