Short-range order

SrTiO₃ with 10 Å grains: each grain interior now holds a handful of intact TiO₆ octahedra that share O corners in the perovskite manner, but the phase-mismatched grain boundaries still dominate the structure.

Parameters

cell.generate(
    shell_target,
    num_steps=300,
    grain_size=10.0,
    bond_weight=0.7,
    angle_weight=0.6,
    repulsion_weight=1.15,
    hard_core_scale=1.10,
    nonbond_push_scale=0.7,
    displacement_sigma=0.006,
)

Relaxation trajectory

g3 distribution