Fig. 1.

(A) Structure factor, $S\left(q\right)$, of a glassy suspension with $n_{\text{b}}=\left(1.4\pm 0.1\right)\text{\%}$ and $\zeta =0.76\pm 0.02$. (Inset) The detector image. (B) $S\left(q\right)$ of a bidisperse and the two corresponding monodisperse crystalline samples with (green) $n_{\text{b}}=\left(6.6\pm 0.7\right)\text{\%}$ and $\zeta =0.67\pm 0.01$, (blue) $\zeta =0.62\pm 0.01$, and (red) $\zeta =0.63\pm 0.02$. (Inset) The detector image of the bidisperse sample. (C−F) Nearest neighbor distance, $d_{\text{nn}}$, versus generalized volume fraction, ζ, for (blue circles) small-only, (red diamonds) large-only, and (green squares) bidisperse suspensions with (D) $n_{\text{b}}=\left(2.3\pm 0.2\right)\text{\%}$, (E) $n_{\text{b}}=\left(29\pm 3\right)\text{\%}$, and (F) $n_{\text{b}}=\left(79\pm 8\right)\text{\%}$. Crystalline samples are represented by filled symbols. The lines are fits to $d_{\text{nn}}\left(\zeta \right)=a{\zeta }^{-1/3}$, with a as a fitting parameter. In D−F, ${\zeta }_{\text{s}}^{\text{eff}}$ is given by the upper x axis, and the violet vertical line indicates a value of ${\zeta }_{\text{s}}^{\text{eff}}=1$. The swollen radii of the particles used in all shown measurements are listed in Table S1.