Atomistic Growth Simulation and AI‑Driven Structure Generation of Amorphous Carbon
Oral-In-person · Withdrawn
Abstract
Amorphous monolayer carbon offers a unique platform to study disordered systems, whose growth pathways remain elusive. Starting from it, we present a three-part program linking atomistic growth, machine learning force fields, and inverse design across dimensions. (1) Using HyPASE—a bottom-up framework that couples a hybrid potential with fine-grid based Monte Carlo—we simulate carbon atomic manufacturing on Cu surfaces and this method could be applicable to other materials. Additionally, we uncover a chaining-branching-networking-filling (CBNF) mechanism, a unique growth process that might be overlooked in predefined commensurate lattice model. (2) We distill high value configurations and trajectories from HyPASE+DFT to fine-tune a MACE-based machine learning force field (MLFF) for carbon–metal systems, reproducing key energetics and kinetic barriers associated with CBNF while substantially accelerating sampling. (3) Guided by the CBNF priors and the MLFF, we launch a flow-based generative model over carbon networks conditioned on target structural statistic properties, yielding candidate amorphous–crystalline hybrid frameworks and testable routes for disorder modulation. Together these thrusts bridge atomic interactions at interfaces with bulk disorder architectures, provide hypotheses for amorphous–crystalline transitions and outline a path to physically grounded inverse design of disordered materials.
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Publication: 0. Tian et al.,Disorder-tuned conductivity in amorphous monolayer carbon, Nature 2023,615,56–61.
1. J. Hu et al, Simulated Atomistic Growth of Amorphous Monolayer Carbon, J. Phys. Chem. Lett. 16, 6866−6873 (2025).
2. S. Liu,‡ Ran Cao,‡ J. Hu‡ et al, Degree of disorder-regulated ion transport through amorphous monolayer carbon, RSC Adv., 14, 17032 (2024).
3. J. Hu et al, Learning Rare‑Event Growth: A 3D MACE‑Based Interatomic Potential for Two-dimensional Amorphous Carbon (planned papers)
4. J. Hu et al, Generative Inverse Design of Carbon Networks (planned papers)
Presenters
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Jiani Hu
- Peking Univeristy