Fig. 7: Pressure (P)-Temperature (T) phase diagrams of different polygons.
From: A critical edge number revealed for phase stabilities of two-dimensional ball-stick polygons
a Pentagon. b Hexagon. c Octagon. The striped phase (S) and the triangular lattice crystal phase (TX) are colored in orange, the rotator crystal phase (RX) is colored in light blue, the hexatic phase (H) is colored in black (very narrow for hexagon and octagon), and the fluid phase (F) (liquid or gas) is colored in pink. Physical quantities are expressed in L-J units.
