Structure and fragility in a macroscopic model of a glass-forming liquid based on a nonvibrating granular system

C. Tapia-Ignacio, R. E. Moctezuma, and F. Donado
Phys. Rev. E 98, 032901 – Published 11 September 2018

Abstract

We studied glass transition in a nonvibrating granular system composed of magnetic steel beads under an unsteady magnetic field. In this model system, particle concentration and effective temperature can be changed independently. We analyzed several particle concentration cases. As concentration increases, the system goes from a fragile to a strong glass-forming liquid behavior and the regularity factor increases showing that the system becomes more regular. As the effective potential shows deeper wells, the fragility index decreases, and the regularity factor increases.

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  • Received 9 April 2018
  • Revised 18 July 2018

DOI:https://doi.org/10.1103/PhysRevE.98.032901

©2018 American Physical Society

Physics Subject Headings (PhySH)

Statistical Physics & Thermodynamics

Authors & Affiliations

C. Tapia-Ignacio1, R. E. Moctezuma2, and F. Donado1

  • 1Instituto de Ciencias Básicas e Ingeniería, Universidad Autónoma del Estado de Hidalgo, Mineral de la Reforma 42184, Hidalgo, México
  • 2CONACYT-Instituto de Física “Manuel Sandoval Vallarta”, Universidad Autónoma de San Luis Potosí, Alvaro Obregón 64, 78000 San Luis Potosí, S.L.P., México

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Vol. 98, Iss. 3 — September 2018

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