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Cooling Rate Dependent Ellipsometry Measurements to Determine the Dynamics of Thin Glassy Films
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Published on: January 26, 2016

Jamming versus glass transitions.

Romain Mari1, Florent Krzakala, Jorge Kurchan

  • 1CNRS, ESPCI, 10 rue Vauquelin, UMR 7636 PMMH, Paris, France 75005.

Physical Review Letters
|August 8, 2009
PubMed
Summary
This summary is machine-generated.

Researchers introduce a model for frictionless particles that bridges two theories of amorphous systems. This model clarifies the relationship between ideal glass transitions and jamming phenomena in disordered materials.

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Area of Science:

  • Physics
  • Materials Science
  • Statistical Mechanics

Background:

  • Traditional theories of amorphous systems originate from liquid theory.
  • Newer ideas focus on frictionless particles in mechanical equilibrium.
  • The relationship between these perspectives and the glass phase remains unclear.

Purpose of the Study:

  • Introduce a model that reconciles distinct theories of amorphous systems.
  • Investigate the connection between ideal glass transitions and jamming phenomena.
  • Clarify the physical underpinnings of the glass phase.

Main Methods:

  • Developed a model system of frictionless particles in mechanical equilibrium.
  • Analyzed the model for ideal glass transition properties.
  • Examined jamming features such as fragility and soft modes within the model.

Main Results:

  • The model strictly adheres to both liquid theory and jamming perspectives.
  • Observed an ideal glass transition within the model.
  • Jamming features in the model closely resemble those of real systems.

Conclusions:

  • The developed model successfully disentangles the phenomena of ideal glass transitions and jamming.
  • Provides a unified framework for understanding amorphous systems.
  • Offers new insights into the nature of the glass phase.