Ong, Chin-Yuan, Lee, Chun-Shing, Gao, Xin-Yuan, Zhai, Qiang, Yu, Zhenhao, Shi, Rui, Deng, Hai-Yao  ORCID: https://orcid.org/0000-0001-6065-483X and Lam, Chi-Hang
2024.
Relating fragile-to-strong transition to fragile glass via lattice model simulations.
Physical review E (statistical, nonlinear, biological, and soft matter physics)
109
(5)
, 054124.
10.1103/PhysRevE.109.054124
|
Abstract
Glass formers are, in general, classified as strong or fragile depending on whether their relaxation rates follow Arrhenius or super-Arrhenius temperature dependence. There are, however, notable exceptions, such as water, which exhibit a fragile-to-strong (FTS) transition and behave as fragile and strong, respectively, at high and low temperatures. In this work, the FTS transition is studied using a distinguishable-particle lattice model previously demonstrated to be capable of simulating both strong and fragile glasses [C.-S. Lee, M. Lulli, L.-H. Zhang, H.-Y. Deng, and C.-H. Lam, Phys. Rev. Lett. 125, 265703 (2020)]. Starting with a bimodal pair-interaction distribution appropriate for fragile glasses, we show that by narrowing down the energy dispersion in the low-energy component of the distribution, a FTS transition is observed. The transition occurs at a temperature at which the stretching exponent of the relaxation is minimized, in agreement with previous molecular dynamics simulations.
| Item Type: | Article |
|---|---|
| Date Type: | Publication |
| Status: | Published |
| Schools: | Schools > Physics and Astronomy |
| Publisher: | American Physical Society |
| ISSN: | 2470-0045 |
| Date of First Compliant Deposit: | 26 May 2024 |
| Date of Acceptance: | 11 April 2024 |
| Last Modified: | 19 Jul 2024 15:13 |
| URI: | https://orca.cardiff.ac.uk/id/eprint/169188 |
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