Elementary excitations and crossover phenomenon in liquids.

  title={Elementary excitations and crossover phenomenon in liquids.},
  author={Takuya Iwashita and Don M. Nicholson and Takeshi Egami},
  journal={Physical review letters},
  volume={110 20},
The elementary excitations of vibration in solids are phonons. But in liquids phonons are extremely short lived and marginalized. In this Letter through classical and ab initio molecular dynamics simulations of the liquid state of various metallic systems we show that different excitations, the local configurational excitations in the atomic connectivity network, are the elementary excitations in high temperature metallic liquids. We also demonstrate that the competition between the… CONTINUE READING
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