Fig. 5
From: Carbon network evolution from dimers to sheets in superconducting ytrrium dicarbide under pressure
Calculated electron localisation functions. a I4/mmm (YC2-I) at 0 GPa, b C2/m (YC2-II) at 0 GPa, c Pnma (YC2-III) at 50 GPa, d Immm (YC2-IV) at 200 GPa, and e P6/mmm (YC2-V) 300 GPa, with an isosurface of 0.75
