# Novel elastic instability of amorphous solids in finite spatial dimensions.

@article{Shimada2020NovelEI, title={Novel elastic instability of amorphous solids in finite spatial dimensions.}, author={Masanari Shimada and Hideyuki Mizuno and Atsushi Ikeda}, journal={Soft matter}, year={2020} }

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…

## 2 Citations

Low-energy quasilocalized excitations in structural glasses.

- Physics, MedicineThe Journal of chemical physics
- 2021

This Perspective reviews developments over the past three decades toward understanding the emergence of QLEs in structural glasses and the degree of universality in their statistical and structural properties and discusses the challenges and difficulties that hindered progress.

Understanding the scaling of boson peak through insensitivity of elastic heterogeneity to bending rigidity in polymer glasses

- Medicine, PhysicsJournal of physics. Condensed matter : an Institute of Physics journal
- 2021

It is concluded that the bending rigidity does not alter the spatial heterogeneity of the local shear modulus distribution, which yields vibrational and acoustic properties that are controlled solely by the global shearmodulus of a polymer glass.

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