Novel elastic instability of amorphous solids in finite spatial dimensions.

  title={Novel elastic instability of amorphous solids in finite spatial dimensions.},
  author={Masanari Shimada and Hideyuki Mizuno and Atsushi Ikeda},
  journal={Soft matter},
Recently, progress has been made in the understanding of anomalous vibrational excitations in amorphous solids. In the lowest-frequency region, the vibrational spectrum follows a non-Debye quartic law, which persists up to zero frequency without any frequency gap. This gapless vibrational density of states (vDOS) suggests that glasses are on the verge of instability. This feature of marginal stability is now highlighted as a key concept in the theories of glasses. In particular, the elasticity… 

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