# Universal Density of Low Frequency States in Silica Glass at Finite Temperatures

@inproceedings{Bonfanti2021UniversalDO, title={Universal Density of Low Frequency States in Silica Glass at Finite Temperatures}, author={Silvia Bonfanti and Roberto Guerra and Itamar Procaccia and Stefano Zapperi}, year={2021} }

Silvia Bonfanti, Roberto Guerra, Itamar Procaccia and Stefano Zapperi Center for Complexity and Biosystems, Department of Physics, University of Milan, via Celoria 16, 20133 Milano, Italy 2 Dept. of Chemical Physics, The Weizmann Institute of Science, Rehovot 76100, Israel Center for OPTical IMagery Analysis and Learning, Northwestern Polytechnical University, Xi’an, 710072 China 4 CNR Consiglio Nazionale delle Ricerche, Istituto di Chimica della Materia Condensata e di Tecnologie per l’Energia…

#### References

SHOWING 1-10 OF 32 REFERENCES

Universal non-Debye low-frequency vibrations in sheared amorphous solids

- Physics
- 2021

We show that the low-frequency regime of the density of states of structural glass formers is crucially sensitive to the stress-ensemble from which the configurations are sampled. Specifically, in…

Instabilities of time-averaged configurations in thermal glasses.

- Physics, MedicinePhysical review. E
- 2019

The conclusion is that the nonaffine changes in the average configurations during an instability is accurately predicted by the eigenfunctions of the low-lying eigenvalues of the chosen Hessian.

Low-frequency excess vibrational modes in two-dimensional glasses

- Physics
- 2021

Glasses possess more low-frequency vibrational modes than predicted by Debye theory. These excess modes are crucial for the understanding of the low temperature thermal and mechanical properties of…

Elementary plastic events in amorphous silica.

- Medicine, PhysicsPhysical review. E
- 2019

This work identifies two distinct types of elementary plastic events, one is a standard quasilocalized atomic rearrangement while the second is a bond-breaking event that is absent in simplified models of fragile glass formers.

Emergent interparticle interactions in thermal amorphous solids.

- Medicine, PhysicsPhysical review. E
- 2016

A framework to determine the effective force laws that define an effective Hessian is introduced that can be employed to discuss stability properties and the density of states of the amorphous system.

Effective forces in thermal amorphous solids with generic interactions.

- Physics, MedicinePhysical review. E
- 2019

The effective theory for systems with generic interactions is developed, where the effective forces are derivable from an effective potential and in turn they give rise to an effective Hessian whose eigenvalues are all positive when the system is stable.

Damage Accumulation in Silica Glass Nanofibers.

- Medicine, Materials ScienceNano letters
- 2018

The results suggest that the experimentally observed size-induced ductility of silica nanofibers is a manifestation of finite-size criticality, as expected in general for quasi-brittle disordered networks.

Journal of Chemical Physics

- Nature

The first number of the new American Journal of Chemical Physics, which is published by the American Institute of Physics and has an editorial board comprising the leading American chemists and…

Large-scale Atomic/Molecular Massively Parallel Simulator

- Materials Science
- 2011

(LAMMPS) was used to obtain atomistic insights in slip mechanisms , their dependence on crystal orientation, and the differences in the frictional behavior between low stacking fault energy…

Structural relaxation made simple.

- Physics, MedicinePhysical review letters
- 2006

We introduce a simple local atomic structure optimization algorithm which is significantly faster than standard implementations of the conjugate gradient method and often competitive with more…