Colloidal hard spheres: Triumphs, challenges, and mysteries

CP Royall, P Charbonneau, M Dijkstra, J Russo… - Reviews of Modern …, 2024 - APS
The simplicity of hard spheres as a model system is deceptive. Although the particles
interact solely through volume exclusion, that nevertheless suffices for a wealth of static and …

Origin of the boson peak in amorphous solids

YC Hu, H Tanaka - Nature Physics, 2022 - nature.com
It is widely known that the low-temperature physical properties, such as the heat capacity
and thermal conductivity, of a disordered amorphous solid are markedly different from those …

Visualizing slow internal relaxations in a two-dimensional glassy system

Y Chen, Z Ye, K Wang, J Huang, H Tong, Y **… - Nature Physics, 2023 - nature.com
Unlike a crystal, a glassy solid state displays slow internal relaxation processes besides
vibrational modes even when structural (α) relaxation is frozen. The precise nature of such …

Electronic Delocalization Engineering of β‐AsP Enabled High‐Efficient Multisource Logic Nanodevices

F Liu, T Wang, Q Yu, Z Yang, J **ong… - Advanced Functional …, 2024 - Wiley Online Library
Delocalized electron and phonon structures are directives for rationally tuning the intrinsic
physicochemical properties of 2D materials by redistributing electronic density. However, it …

Heterogeneity and Memory Effect in the Sluggish Dynamics of Vacancy Defects in Colloidal Disordered Crystals and Their Implications to High‐Entropy Alloys

CH Chan, Q Huo, A Kumar, Y Shi, H Hong… - Advanced …, 2022 - Wiley Online Library
Vacancy dynamics of high‐density 2D colloidal crystals with a polydispersity in particle size
are studied experimentally. Heterogeneity in vacancy dynamics is observed. Inert vacancies …

Theory of the effects of specific attractions and chain connectivity on the activated dynamics and selective transport of penetrants in polymer melts

B Mei, KS Schweizer - Macromolecules, 2022 - ACS Publications
We generalize and apply a microscopic force level statistical mechanical theory of activated
spherical penetrant dynamics in glass-forming liquids to study the influence of semiflexible …

Modifying ring structures in lithium borate glasses under compression: MD simulations using a machine-learning potential

S Urata, AR Tan, R Gómez-Bombarelli - Physical Review Materials, 2024 - APS
Machine-learning potentials (MLPs) are advantageous in modeling boron coordination and
three-membered rings (3-rings) in borate glasses. In this study, the prominent ability of MLP …

Local-average free volume correlates with dynamics in glass formers

B Mei, B Zhuang, Y Lu, L An… - The Journal of Physical …, 2022 - ACS Publications
Glass formers exhibit a pronounced slowdown in dynamics, accompanied by progressive
heterogeneity as they approach the glass transition. There is intense debate over whether …

Enhanced free surface mobility facilitates the release of free-volume holes in thin-film polymer glasses

H Zha, Q Wang, X Wang, D Cangialosi, B Zuo - Macromolecules, 2021 - ACS Publications
The concept of free volume underpins the variations in polymer dynamics. Annihilation of
free-volume holes through diffusion to surfaces has been proposed to determine the …

Fragile glasses associated with a dramatic drop of entropy under supercooling

CS Lee, M Lulli, LH Zhang, HY Deng, CH Lam - Physical review letters, 2020 - APS
We perform kinetic Monte Carlo simulations of a distinguishable-particle lattice model of
structural glasses with random particle interactions. By varying the interaction distribution …