Extending atomistic simulation timescale in solid/liquid systems: crystal growth from solution by a parallel-replica...

Area of Science:

• Materials Science
• Computational Chemistry
• Physical Chemistry

Background:

• Solid material deposition from solution is common but poorly understood compared to gas/vacuum deposition.
• Atomistic modeling of these complex systems is computationally intensive, limiting long-timescale analysis.

Purpose of the Study:

• To introduce a novel atomistic/continuum hybrid method for simulating solid/liquid interface dynamics.
• To extend achievable simulation timescales for deposition processes.

Main Methods:

• Developed and implemented an atomistic/continuum hybrid simulation technique.
• Applied the method to simulate silver (Ag) deposition onto an Ag (001) surface from solution.
• Compared simulation speed against standard molecular dynamics (MD).

Main Results:

• Achieved significant speedup compared to standard MD simulations.
• Observed specific features of diffusive deposition dynamics.
• Documented a notable increase in film roughness during deposition.

Conclusions:

• The hybrid method effectively extends simulation timescales for solid/liquid interface dynamics.
• The approach provides insights into the mechanisms of diffusive deposition.
• This method enables the study of long-timescale phenomena previously inaccessible to standard simulations.