Comment on: “Disentangling density and temperature effects in the viscous slowing down of glass forming liquids” [J. Chem. Phys. 120, 6135 (2004)]

2004 ◽  
Vol 121 (22) ◽  
pp. 11503 ◽  
Author(s):  
C. M. Roland ◽  
R. Casalini
2019 ◽  
Vol 20 (22) ◽  
pp. 5708 ◽  
Author(s):  
Francesco Puosi ◽  
Antonio Tripodo ◽  
Dino Leporini

Many systems, including polymers and molecular liquids, when adequately cooled and/or compressed, solidify into a disordered solid, i.e., a glass. The transition is not abrupt, featuring progressive decrease of the microscopic mobility and huge slowing down of the relaxation. A distinctive aspect of glass-forming materials is the microscopic dynamical heterogeneity (DH), i.e., the presence of regions with almost immobile particles coexisting with others where highly mobile ones are located. Following the first compelling evidence of a strong correlation between vibrational dynamics and ultraslow relaxation, we posed the question if the vibrational dynamics encodes predictive information on DH. Here, we review our results, drawn from molecular-dynamics numerical simulation of polymeric and molecular glass-formers, with a special focus on both the breakdown of the Stokes–Einstein relation between diffusion and viscosity, and the size of the regions with correlated displacements.


2004 ◽  
Vol 120 (13) ◽  
pp. 6135-6141 ◽  
Author(s):  
G. Tarjus ◽  
D. Kivelson ◽  
S. Mossa ◽  
C. Alba-Simionesco

2016 ◽  
Vol 18 (29) ◽  
pp. 19976-19976 ◽  
Author(s):  
M. H. Yang ◽  
Y. Li ◽  
J. H. Li ◽  
B. X. Liu

Retraction of ‘Atomic-scale simulation to study the dynamical properties and local structure of Cu–Zr and Ni–Zr metallic glass-forming alloys’ by M. H. Yang et al., Phys. Chem. Chem. Phys., 2016, 18, 7169–7183.


2009 ◽  
Vol 131 (24) ◽  
pp. 249902 ◽  
Author(s):  
Kristine Niss ◽  
Cécile Dalle-Ferrier ◽  
Valentina M. Giordano ◽  
Giulio Monaco ◽  
Bernhard Frick ◽  
...  
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