2 results match your criteria: "Japan and The Graduate University for Advanced Studies (SOKENDAI)[Affiliation]"

Unraveling the dynamic slowdown in supercooled water: The role of dynamic disorder in jump motions.

J Chem Phys

May 2024

Institute for Molecular Science, Myodaiji, Okazaki, Aichi 444-8585, Japan and The Graduate University for Advanced Studies (SOKENDAI), Myodaiji, Okazaki, Aichi 444-8585, Japan.

Article Synopsis
  • Rapid cooling of water below its melting point leads to a significant slowdown in its dynamics without obvious structural changes, posing a challenge to understand this phenomenon.
  • Molecular dynamics simulations reveal that the jump dynamics of water molecules behave differently than expected at lower temperatures, influenced by slow variables that disrupt regular motion, described as dynamic disorder.
  • As temperature decreases, jumping molecules become trapped in stable low-density regions, increasing the number of slow variables involved and resulting in even slower and more intermittent dynamics, which may eventually lead to a glass transition.
View Article and Find Full Text PDF