Approach to hyperuniformity in a metallic glass-forming material exhibiting a fragile to strong glass transition DOI Creative Commons
Hao Zhang, Xinyi Wang, Jiarui Zhang

и другие.

The European Physical Journal E, Год журнала: 2023, Номер 46(6)

Опубликована: Июнь 1, 2023

We investigate a metallic glass-forming (GF) material (Al90Sm10) exhibiting fragile-strong (FS) glass-formation by molecular dynamics simulation to better understand this highly distinctive pattern of in which many the usual phenomenological relations describing relaxation times and diffusion ordinary GF liquids no longer apply, where instead genuine thermodynamic features are observed response functions little signature is exhibited at glass transition temperature, Tg. Given unexpected similarities between thermodynamics with water, we first focus on anomalous static scattering liquid, following recent studies silicon other FS liquids. quantify "hyperuniformity index" H our provides quantitative measure "jamming". To gain insight into T-dependence magnitude H, also estimate another more familiar particle localization, Debye-Waller parameter 〈u2〉 mean-square displacement timescale order fast time, calculate for heated crystalline Cu. This comparative analysis materials allows us critical value 10-3 as being analogous Lindemann criterion both melting crystals "softening" glasses. further interpret emergence liquid-liquid phase separation class arise from cooperative self-assembly process liquid.

Язык: Английский

Topology in soft and biological matter DOI Creative Commons
Luca Tubiana, Gareth P. Alexander, Agnese Barbensi

и другие.

Physics Reports, Год журнала: 2024, Номер 1075, С. 1 - 137

Опубликована: Май 16, 2024

The last years have witnessed remarkable advances in our understanding of the emergence and consequences topological constraints biological soft matter. Examples are abundant relation to (bio)polymeric systems range from characterization knots single polymers proteins that whole chromosomes polymer melts. At same time, considerable been made description interplay between physical properties complex fluids, with development techniques now allow researchers control formation interaction defects diverse classes liquid crystals. Thanks technological progress integration experiments increasingly sophisticated numerical simulations, matter is a vibrant area research attracting scientists broad disciplines. However, owing high degree specialization modern science, many results remained confined their own particular fields, different jargon making it difficult for share ideas work together towards comprehensive view phenomena at play. Compelled by these motivations, here we present overview effects ranging DNA genome organization entangled proteins, polymeric materials, crystals, theoretical physics, intention reducing barriers fields biophysics. Particular care has taken providing coherent formal introduction continuum materials highlighting underlying common aspects concerning emergence, characterization, objects systems. second half review dedicated presentation latest selected problems, specifically, on viscoelastic materials; organization; discussion possible other entanglements proteins; solitons fluids. This memory Marek Cieplak.

Язык: Английский

Процитировано

32
Toward atomic-scale understanding of structure-dynamics-properties relations for metallic glasses DOI
Zhen-Ya Zhou, Qun Yang, Hai‐Bin Yu

и другие.

Progress in Materials Science, Год журнала: 2024, Номер 145, С. 101311 - 101311

Опубликована: Май 12, 2024

Язык: Английский

Процитировано

28
Freezing Shrinkage Dynamics and Surface Dendritic Growth of Floating Refractory Alloy Droplets in Outer Space DOI
Haipeng Wang,

Hui Liao,

Liang Hu

и другие.

Advanced Materials, Год журнала: 2024, Номер 36(24)

Опубликована: Март 10, 2024

The freezing shrinkage and dendritic growth are of great importance for various alloys solidified from high-temperature liquids to solids since they dominate microstructure patterns follow-up processing. However, the microgravity dynamics is scarcely explored on ground as it hard suppress strong natural convection inside liquid alloys. Here, a series in-orbit solidification experiments conducted aboard China Space Station with long-term stable 10

Язык: Английский

Процитировано

20
Topological linking determines elasticity in limited valence networks DOI Creative Commons
Giorgia Palombo,

Simon Weir,

Davide Michieletto

и другие.

Nature Materials, Год журнала: 2025, Номер unknown

Опубликована: Янв. 31, 2025

Understanding the relationship between microscopic structure and topology of a material its macroscopic properties is fundamental challenge across wide range systems. Here we investigate viscoelasticity DNA nanostar hydrogels-a model system for physical networks with limited valence-by coupling rheology measurements, confocal imaging molecular dynamics simulations. We discover that these display large degree interpenetration loops within network are topologically linked, forming percolating network-within-network structure. Below overlapping concentration, fraction branching points pore size determine high-frequency elasticity gels. At higher concentrations, this elastic response dictated by abundance topological links looped motifs in gel. Our findings highlight emergence 'topological elasticity' as previously overlooked mechanism generic network-forming liquids gels inform design controllable behaviours.

Язык: Английский

Процитировано

3
Frustration in Super‐Ionic Conductors Unraveled by the Density of Atomistic States DOI Creative Commons
Shuo Wang, Yunsheng Liu, Yifei Mo

и другие.

Angewandte Chemie International Edition, Год журнала: 2023, Номер 62(15)

Опубликована: Фев. 7, 2023

The frustration in super-ionic conductors enables their exceptionally high ionic conductivities, which are desired for many technological applications including batteries and fuel cells. A key challenge the study of is difficulties analyzing a large number disordered atomistic configurations. Using lithium as model systems, we propose demonstrate density states (DOAS) analytics to quantitatively characterize onset degree disordering, reveal energetics local disorder, elucidate how enhances diffusion through broadening overlapping energy levels states. Furthermore, material design strategies aided by DOAS devised demonstrated new conductors. generally applicable unraveling fundamental mechanisms complex systems guiding design.

Язык: Английский

Процитировано

37
When stars make loopy networks DOI
Emanuela Del Gado

Nature Materials, Год журнала: 2025, Номер unknown

Опубликована: Фев. 21, 2025

Язык: Английский

Процитировано

1
Investigation of water structure and proton transfer within confined graphene by ab initio molecule dynamics and multiscale data analysis DOI

Heng-Su Liu,

Ximing Zhang,

Ge-Hao Liang

и другие.

Chinese Journal of Structural Chemistry, Год журнала: 2025, Номер unknown, С. 100596 - 100596

Опубликована: Апрель 1, 2025

Язык: Английский

Процитировано

1
The physics behind water irregularity DOI Creative Commons
Chang Q. Sun, Yongli Huang, Xi Zhang

и другие.

Physics Reports, Год журнала: 2022, Номер 998, С. 1 - 68

Опубликована: Дек. 10, 2022

The notion of asymmetrical Hydrogen Bond (O:H-O) Cooperativity and Polarizability (HBCP) has enabled exploration the core physics behind irregularities water ice, particularly, evolution mass density, phase stability, energy exchange, their transition velocity under perturbation. We humbly share initiatives quasisolidity presented between Liquid Ice, supersolidity pertained to polarization by electrification or molecular undercoordination, H↔H O:⇔:O repulsivity owing respective injection excessive protons lone pairs liquid solvation. O—O forms key that drives O:H-O bond cooperatively relax its segmental length, cohesive energy, vibration frequency, specific heat upon perturbation, which establishes an efficient set parameters feature bonding electronic dynamics in frequency–space–time domains. An interplay heats defines densities, boundaries, exotic quasisolid (QS) exhibits negative thermal expansivity through H-O contracting less than scale O:H expansion cooling. However, undergoes cooling elongation Ice-I remains silent XI phase. absorbs contraction does it inverse at expansion. nonbond always relaxes more contrasting direction. Mechanical compression symmetrizes length associated with polarization, disperses inwardly QS boundary lower Tm for melting but raise temperature TN ice nucleation TV evaporation, resulting phenomena regelation instant-ice formation. Polarization, however, contrast effect on hydrogen relaxation transition. converts pristine into gel-like, hydrophobic, viscoelastic supersolid is less-dense thermally diffusive stable, entitling surface premelting, superheating Tm, supercooling TV. Polarization enhances dielectrics widens bandgap ice. ensures 120 K superelasticity microfibers 330 stability electrified bridge crossing rims infilled containers. high elasticity softer interface electrostatic secure slipperiness superfluidity traveling fine channels. skin memorability uniquely foster Mpemba — warm cools quickly. modifies network solution properties solvent elongation, solute contraction, polarization. HBCP premise thus correlated irregularity Further extension aqueous assemblies involved electron coupling interactions could be even fascinating profoundly promising.

Язык: Английский

Процитировано

36
Frustration in Super‐Ionic Conductors Unraveled by the Density of Atomistic States DOI Creative Commons
Shuo Wang, Yunsheng Liu, Yifei Mo

и другие.

Angewandte Chemie, Год журнала: 2023, Номер 135(15)

Опубликована: Фев. 7, 2023

Abstract The frustration in super‐ionic conductors enables their exceptionally high ionic conductivities, which are desired for many technological applications including batteries and fuel cells. A key challenge the study of is difficulties analyzing a large number disordered atomistic configurations. Using lithium as model systems, we propose demonstrate density states (DOAS) analytics to quantitatively characterize onset degree disordering, reveal energetics local disorder, elucidate how enhances diffusion through broadening overlapping energy levels states. Furthermore, material design strategies aided by DOAS devised demonstrated new conductors. generally applicable unraveling fundamental mechanisms complex systems guiding design.

Язык: Английский

Процитировано

16
Deciphering Density Fluctuations in the Hydration Water of Brownian Nanoparticles via Upconversion Thermometry DOI Creative Commons
Fernando E. Maturi, Ramon S. Raposo Filho, Carlos D. S. Brites

и другие.

The Journal of Physical Chemistry Letters, Год журнала: 2024, Номер 15(9), С. 2606 - 2615

Опубликована: Фев. 29, 2024

We investigate the intricate relationship among temperature, pH, and Brownian velocity in a range of differently sized upconversion nanoparticles (UCNPs) dispersed water. These UCNPs, acting as nanorulers, offer insights into assessing relative proportion high-density low-density liquid surrounding hydration The study reveals size-dependent reduction onset temperature liquid-water fluctuations, indicating an augmented presence domains at nanoparticle surfaces. observed upper-temperature threshold is consistent with hypothetical phase diagram water, validating two-state model. Moreover, increase pH disrupts organization water molecules, similar to external pressure effects, allowing simulation effects on hydrogen bonding networks. findings underscore significance surface suspended for understanding high- fluctuations behavior charged interfaces.

Язык: Английский

Процитировано

5