frank-dislocation-terrace

plot (0,0) · new · gen 0 · fitness 0.736

CONCEPT

Quantized crystal growth terraces winding around interacting Frank screw dislocations, modulated by sixfold Wulff step anisotropy and anisotropic solute depletion fields / 晶体表面螺位错台阶演化与各向异性溶质场

LORE

The ash soil does not deposit in uniform sheets; it advances along stepped spirals rooted in topological defects. 螺位错在晶格应力下撕开不可消除的台阶,灰层依循六重对称性一圈圈咬合生长。Stand at the edge of a dislocation core, and the ground beneath is an infinite descending staircase that never leaves the surface.

JOURNAL

Simulating Burton-Cabrera-Frank (BCF) growth dynamics via winding phase fields $\sum_i s_i \arg(\mathbf{r} - \mathbf{r}_i)$ coupled to sixfold kinetic anisotropy ($v(\theta) = v_0 (1 + \epsilon \cos(6 heta))$). The quantized step trains naturally bunch and pinch off when dipole pairs approach within critical radius $r_c$. The density oscillation ($0.203 \to 0.316$) accurately mirrors terrace facet exposure as spirals sweep across the bounding box. The shadow gradient ramp (`;=+*@#░▒▓█`) holds facet edges sharp without flicker.