Shear transformations in metallic glasses without excessive and predefinable defects

Z Zhang, J Ding, E Ma - Proceedings of the National …, 2022 - National Acad Sciences
Plastic flow in metallic glasses (MGs) is known to be mediated by shear transformations
(STs), which have been hypothesized to preferentially initiate from identifiable local “defect” …

Dimensionality reduction of local structure in glassy binary mixtures

D Coslovich, RL Jack, J Paret - The Journal of Chemical Physics, 2022 - pubs.aip.org
We consider unsupervised learning methods for characterizing the disordered microscopic
structure of supercooled liquids and glasses. Specifically, we perform dimensionality …

Deep machine learning interatomic potential for liquid silica

IA Balyakin, SV Rempel, RE Ryltsev, AA Rempel - Physical Review E, 2020 - APS
The use of machine learning to develop neural network potentials (NNP) representing the
interatomic potential energy surface allows us to achieve an optimal balance between …

Development of a semi-empirical potential suitable for molecular dynamics simulation of vitrification in Cu-Zr alloys

MI Mendelev, Y Sun, F Zhang, CZ Wang… - The Journal of Chemical …, 2019 - pubs.aip.org
The fast increase in available computation power allowed us to decrease the cooling rate in
molecular dynamics (MD) simulation of vitrification by several orders of magnitude. While the …

Universal structural properties of three-dimensional and two-dimensional melts

BA Klumov - Uspekhi fizicheskikh nauk, 2023 - ufn.ru
A brief overview of the key methods for analyzing the structure of three-dimensional (3D)
matter is given by using as an example melts of simple model systems like Lennard-Jones …

Structural parameter of orientational order to predict the boson vibrational anomaly in glasses

J Yang, YJ Wang, E Ma, A Zaccone, LH Dai, MQ Jiang - Physical review letters, 2019 - APS
It has so far remained a major challenge to quantitatively predict the boson peak, a THz
vibrational anomaly universal for glasses, from features in the amorphous structure. Using …

Structural changes during glass formation extracted by computational homology with machine learning

A Hirata, T Wada, I Obayashi, Y Hiraoka - Communications Materials, 2020 - nature.com
The structural origin of the slow dynamics in glass formation remains to be understood
owing to the subtle structural differences between the liquid and glass states. Even from …

Viscosity, undercoolability and short-range order in quasicrystal-forming Al-Cu-Fe melts

LV Kamaeva, RE Ryltsev, VI Lad'Yanov… - Journal of Molecular …, 2020 - Elsevier
Understanding the mechanisms which relate properties of liquid and solid phases is crucial
for fabricating new advanced solid materials, such as glasses, quasicrystals and high …

Crystallization instability in glass-forming mixtures

TS Ingebrigtsen, JC Dyre, TB Schrøder, CP Royall - Physical Review X, 2019 - APS
Understanding the mechanisms by which crystal nuclei form is crucial for many phenomena
such as gaining control over crystallization in glass-forming materials or accurately modeling …

Nucleation instability in supercooled Cu–Zr–Al glass-forming liquids

RE Ryltsev, BA Klumov, NM Chtchelkatchev… - The Journal of …, 2018 - pubs.aip.org
Few general models representing certain classes of real glass-forming systems play a
special role in computer simulations of supercooled liquid and glasses. Recently, it was …