RT Journal Article T1 Separation and fractionation of order and disorder in highly polydisperse systems A1 Fernández Pérez, Luis Antonio A1 Martín Mayor, Víctor A1 Seoane Bartolomé, Beatriz A1 Verrocchio, P. AB We study a polydisperse soft-spheres model for colloids by means of microcanonical Monte Carlo simulations. We consider a polydispersity as high as 24%. Although solidification occurs, neither a crystal nor an amorphous state are thermodynamically stable. A finite size scaling analysis reveals that in the thermodynamic limit: a the fluid-solid transition is rather a crystal-amorphous phase-separation, b such phase-separation is preceded by the dynamic glass transition, and c small and big particles arrange themselves in the two phases according to a complex pattern not predicted by any fractionation scenario. PB American Physical Society SN 1539-3755 YR 2010 FD 2010-08-05 LK https://hdl.handle.net/20.500.14352/45055 UL https://hdl.handle.net/20.500.14352/45055 LA eng NO © 2010 The American Physical Society.We acknowledge BIFI cluster and CINECA for 2 x 10^(5) h of computer time. We have been partly supported through Research Contracts No. FIS2006-08533, No. FIS2009-12648-C03-01, and No. FIS2008-01323 MICINN, Spain and by UCM-Banco de Santander Grant No. GR58/ 08. B.S. was supported by the FPU program (Spain). NO Ministerio de Ciencia e Innovación (MICINN) NO UCM-Banco de Santander NO FPU program (Spain) DS Docta Complutense RD 17 abr 2025