Silicon (diamond cubic, a = 5.431 Å) has 4-fold tetrahedral coordination with a single Si-Si-Si bond angle of 109.5°. It is the reference case for the six disorder regimes.
Overview¶
All six regimes at 40 × 40 × 40 Å, rotating in sync. Drag any panel to orbit manually.
g(r) per regime overlaid on a single axis. The dropdown below the plot switches species pair; the legend identifies each curve by the regime it was measured from:
Reference crystal¶
from ase.build import bulk
atoms = bulk('Si', 'diamond', a=5.431)Disorder regimes¶
Click any regime for the full interactive trajectory viewer and g3 distribution.
Preset summary¶
liquid and nanocrystalline keep the library
atomode.Supercell.PRESETS defaults; the in-between regimes use
explicit per-cell parameters tuned so the polyhedron count walks a
clear ladder from disordered (liquid → ~110 tetrahedra detected at
the polyhedra-detector tolerances bond_length_tol=0.10,
angle_tol_deg=18) through to crystalline (NC → ~1300).
| Preset | num_steps | Grain (Å) | bond_weight | angle_weight | repulsion_weight | hard_core_scale | nonbond_push_scale | displacement_sigma |
|---|---|---|---|---|---|---|---|---|
liquid | 100 | - | 0.4 | 0.5 | 0.5 | 0.75 | 0.7 | - |
amorphous | 120 | - | 0.6 | 0.20 | 1.3 | 0.86 | 0.45 | 0.12 |
SRO | 180 | 8.0 | 1.5 | 0.5 | 1.8 | 0.91 | 0.60 | 0.06 |
MRO | 200 | 12.0 | 2.0 | 0.8 | 2.2 | 0.93 | 0.75 | 0.04 |
LRO | 200 | 15.0 | 2.4 | 1.0 | 2.3 | 0.93 | 0.85 | 0.035 |
nanocrystalline | 150 | 20.0 | 3.0 | 1.5 | - | - | - | 0.02 |