%0 Journal Article %T Hiding in Plain View: Colloidal Self-Assembly from Polydisperse Populations %+ Laboratoire Colloïdes et Matériaux Divisés (LCMD) %+ Max Planck Institute for Dynamics and Self-Organization (MPIDS) %+ Institut de Physique de Rennes (IPR) %+ Laboratoire de Physique des Solides (LPS) %+ Laboratoire Interdisciplinaire Carnot de Bourgogne (ICB) %+ European Synchrotron Radiation Facility (ESRF) %A Cabane, Bernard %A Li, Joaquim %A Artzner, Franck %A Botet, Robert %A Labbez, Christophe %A Bareigts, Guillaume %A Sztucki, Michael %A Goehring, Lucas %< avec comité de lecture %@ 0031-9007 %J Physical Review Letters %I American Physical Society %V 116 %N 20 %P 208001 %8 2016 %D 2016 %Z 1511.02493 %R 10.1103/PhysRevLett.116.208001 %M 27258885 %K close-packed structures %K small-angle scattering %K 2 different sizes %K hard-sphere %K charge renormalization %K phase-transitions %K crystallization %K suspensions %K distributions %K dispersions %Z Physics [physics]Journal articles %X We report small-angle x-ray scattering experiments on aqueous dispersions of colloidal silica with a broad monomodal size distribution (polydispersity, 14%; size, 8 nm). Over a range of volume fractions, the silica particles segregate to build first one, then two distinct sets of colloidal crystals. These dispersions thus demonstrate fractional crystallization and multiple-phase (bcc, Laves AB(2), liquid) coexistence. Their remarkable ability to build complex crystal structures from a polydisperse population originates from the intermediate-range nature of interparticle forces, and it suggests routes for designing self-assembling colloidal crystals from the bottom up. %G English %L hal-01343403 %U https://univ-rennes.hal.science/hal-01343403 %~ UNIV-BOURGOGNE %~ ESPCI %~ UNIV-RENNES1 %~ CNRS %~ UNIV-PSUD %~ ICB %~ PARISTECH %~ OSUR %~ LCMD %~ IPR %~ IPR-MD %~ STATS-UR1 %~ UR1-SPM %~ UR1-UFR-SPM %~ UR1-HAL %~ PSL %~ UR1-SDLM %~ UNIV-PARIS-SACLAY %~ UNIV-PSUD-SACLAY %~ TEST-UNIV-RENNES %~ TEST-UR-CSS %~ UNIV-RENNES %~ ESPCI-PSL %~ UR1-MMS %~ GS-CHIMIE %~ GS-PHYSIQUE %~ INSTITUT-SCIENCES-LUMIERE %~ LPSO