Glassy dynamics of dense particle assemblies on a spherical substrate

Area of Science:

• Condensed Matter Physics
• Statistical Mechanics
• Computational Materials Science

Background:

• Dense particle systems exhibit complex behaviors under confinement.
• Understanding structural and dynamical properties is crucial for materials design.

Purpose of the Study:

• Investigate the impact of temperature and substrate curvature on particle system properties.
• Analyze the emergence of glassy dynamics and structural order frustration.

Main Methods:

• Molecular dynamics simulations of a dense one-component particle system.
• System confinement on a spherical substrate.
• Analysis of structural and dynamical properties at varying temperatures and curvatures.

Main Results:

• Glassy dynamics observed at low temperatures, characterized by slow relaxation and dynamical heterogeneity.
• Local 6-fold order is frustrated by substrate curvature.
• Topological defects significantly influence system statics and dynamics.

Conclusions:

• Substrate curvature and temperature are key parameters controlling particle system behavior.
• Topological defects play a critical role in the frustrated order and dynamics of confined particle systems.