Figure 5.

(A) Average coordination number ⟨N_b⟩ of attractive spheres (ATT_S) and ellipsoids (ATT_E) as a function of the volume fraction ϕ. Although similar at a low volume fraction, attractive spheres have a higher coordination number, implying a more homogeneous and compact cage configuration. Inset: the structure factor S(q*) supports this notion, and the larger values at a high volume fraction cause a stronger slowing down for spheres compared with ellipsoids, which compensates the mobility difference. (B, C) The structure factor S(q) for different volume fractions of (B) attractive sphere and (C) ellipsoid. r_s = 3σ is the radius of the sphere,²³ and r_a = 5σ, r_b = 2.95σ, and r_c = 2.5σ are the semiprincipal axes of the ellipsoid.