The hydrogen-bond network of water supports propagating optical phonon-like modes

  title={The hydrogen-bond network of water supports propagating optical phonon-like modes},
  author={Daniel C. Elton and Marivi Fern{\'a}ndez-Serra},
  journal={Nature Communications},
The local structure of liquid water as a function of temperature is a source of intense research. This structure is intimately linked to the dynamics of water molecules, which can be measured using Raman and infrared spectroscopies. The assignment of spectral peaks depends on whether they are collective modes or single-molecule motions. Vibrational modes in liquids are usually considered to be associated to the motions of single molecules or small clusters. Using molecular dynamics simulations… 

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