Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Arrested phase separation in a short-ranged attractive colloidal system: a numerical study.

G Foffi1, C De Michele, F Sciortino

  • 1Institut Romand de Recherche Numérique en Physique des Matériaux, PPH-Ecublens, CH-105 Lausanne, Switzerland. giuseppe.foffi@epfl.ch

The Journal of Chemical Physics
|June 25, 2005
PubMed
Summary

In colloidal systems, phase separation can be interrupted by glass formation, creating an attractive glass. This arrested state retains memory of the initial phase separation, influenced by particle packing.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Self-assembly and non-equilibrium phase coexistence in a binary granular mixture.

The Journal of chemical physics·2025
Same author

Non-equilibrium coexistence between a fluid and a hotter or colder crystal of granular hard disks.

The Journal of chemical physics·2025
Same author

Interplay between an Absorbing Phase Transition and Synchronization in a Driven Granular System.

Physical review letters·2024
Same author

Interpenetrating gels in binary suspensions of DNA nanostars.

The Journal of chemical physics·2022
Same author

All-DNA System Close to the Percolation Threshold.

ACS macro letters·2022
Same author

Building up DNA, bit by bit: a simple description of chain assembly.

Soft matter·2021

Area of Science:

  • Soft Matter Physics
  • Colloidal Science
  • Statistical Mechanics

Background:

  • Colloidal systems with attractive interactions can exhibit phase separation.
  • Dynamical arrest, or glass formation, is a common phenomenon in dense fluids.
  • Understanding the interplay between these two processes is crucial for predicting material properties.

Purpose of the Study:

  • To numerically investigate the competition between phase separation and dynamical arrest in colloidal systems.
  • To analyze how temperature and packing fraction influence these competing processes.
  • To characterize the structure and dynamics of the resulting attractive glass.

Main Methods:

  • Numerical simulations of a colloidal system with short-ranged attractive potential.

Related Experiment Videos

  • Quenching equilibrium fluid configurations at different temperatures below the critical temperature.
  • Time evolution analysis of phase separation, glass formation, and non-ergodicity parameter.

    • Main Results:

    • At low temperatures, phase separation is arrested by attractive glass formation in the dense phase.
    • At higher temperatures, phase separation proceeds without arrest within the simulated time.
    • The attractive glass structure shows a frozen spinodal decomposition peak dependent on packing fraction.
    • Non-ergodicity parameter decreases with increasing packing fraction, indicating reduced localization length.

    Conclusions:

    • The competition between phase separation and dynamical arrest is temperature-dependent.
    • Attractive glasses formed during interrupted phase separation retain memory of the initial process.
    • Packing fraction plays a key role in controlling the characteristics of the arrested state.
    • The observed phenomena are independent of the specific microscopic dynamics.