111 citations · 677 across the 20 of their papers we have counts for
16 papers · 1 filter
Potential energy landscape picture of zero-temperature avalanche criticality governing dynamics in supercooled liquids
Norihiro Oyama, Yusuke Hara, Takeshi Kawasaki +1
Supercooled liquids are metastable states realized by suppressing crystallization below the melting temperature. While it is well established that their dynamics slow down dramatic…
Zero-temperature Avalanche Criticality Governing Dynamical Heterogeneity in Supercooled Liquids
Norihiro Oyama, Yusuke Hara, Takeshi Kawasaki +1
In supercooled liquids, mesoscale mobile and immobile domains are ubiquitously observed, a phenomenon known as dynamical heterogeneity. Extensive studies have established that the…
Simulating the nematic-isotropic phase transition of liquid crystal model via generalized replica-exchange method
Kengo Takemoto, Yoshiki Ishii, Hitoshi Washizu +2
The nematic-isotropic (NI) phase transition of 4-cyano-4'-pentylbiphenyl (5CB) was simulated using the generalized replica-exchange method (gREM) based on molecular dynamics simula…
Effects of chain length on Rouse modes and non-Gaussianity in linear and ring polymer melts
Shota Goto, Kang Kim, Nobuyuki Matubayasi
The dynamics of ring polymer melts are studied via molecular dynamics simulations of the Kremer-Grest bead-spring model. Rouse mode analysis is performed in comparison with linear…
Boson peak, elasticity, and glass transition temperature in polymer glasses: Effects of the rigidity of chain bending
Naoya Tomoshige, Hideyuki Mizuno, Tatsuya Mori +2
The excess low-frequency vibrational spectrum, called boson peak, and non-affine elastic response are the most important particularities of glasses. Herein, the vibrational and mec…
Diffusion dynamics of supercooled water modeled with the cage-jump motion and hydrogen-bond rearrangement
Takuma Kikutsuji, Kang Kim, Nobuyuki Matubayasi
The slow dynamics of glass-forming liquids is generally ascribed to the cage-jump motion. In the cage-jump picture, a molecule remains in a cage formed by neighboring molecules, an…