Journal
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
Volume 18, Issue 38, Pages 26643-26650Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c6cp04238d
Keywords
-
Funding
- National Natural Science Foundation of China [51271195, 51271197]
- MOST 973 Program [2015 CB856800]
Ask authors/readers for more resources
While low-temperature relaxations show significant differences among metallic glasses with different compositions, the underlying mechanism remains mysterious. Using molecular dynamics simulation, low-temperature relaxation of amorphous solids is investigated in model systems with different atomic interaction stiffness. It was found that as the interaction stiffness increases, the low-temperature relaxation is enhanced. The fraction of mobile atoms increases with increasing interaction stiffness, while the length scale of dynamical heterogeneity does not change. The enhanced relaxation may be due to increased dynamical heterogeneity. These findings provide a physical picture for better understanding the origin of low-temperature relaxation dynamics in amorphous solids, and the experimentally observed different beta-relaxation behaviors in various metallic glasses.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available