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Structured randomness: jamming of soft discs and pins.
Wentworth-Nice, Prairie; Ridout, Sean A; Jenike, Brian; Liloia, Ari; Graves, Amy L.
Afiliação
  • Wentworth-Nice P; Department of Physics and Astronomy, Swarthmore College, Swarthmore, PA 19081, USA. abug1@swarthmore.edu.
  • Ridout SA; Department of Physics and Astronomy, University of Pennsylvania, Philadelphia, PA 19104, USA.
  • Jenike B; Department of Physics and Astronomy, Swarthmore College, Swarthmore, PA 19081, USA. abug1@swarthmore.edu.
  • Liloia A; Department of Physics and Astronomy, Swarthmore College, Swarthmore, PA 19081, USA. abug1@swarthmore.edu.
  • Graves AL; Department of Physics and Astronomy, Swarthmore College, Swarthmore, PA 19081, USA. abug1@swarthmore.edu.
Soft Matter ; 16(22): 5305-5313, 2020 Jun 10.
Article em En | MEDLINE | ID: mdl-32467960
ABSTRACT
Simulations are used to find the zero temperature jamming threshold, φj, for soft, bidisperse disks in the presence of small fixed particles, or "pins", arranged in a lattice. The presence of pins leads, as one expects, to a decrease in φj. Structural properties of the system near the jamming threshold are calculated as a function of the pin density. While the correlation length exponent remains ν = 1/2 at low pin densities, the system is mechanically stable with more bonds, yet fewer contacts than the Maxwell criterion implies in the absence of pins. In addition, as pin density increases, novel bond orientational order and long-range spatial order appear, which are correlated with the square symmetry of the pin lattice.

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Tipo de estudo: Clinical_trials Idioma: En Revista: Soft Matter Ano de publicação: 2020 Tipo de documento: Article País de afiliação: Estados Unidos

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Tipo de estudo: Clinical_trials Idioma: En Revista: Soft Matter Ano de publicação: 2020 Tipo de documento: Article País de afiliação: Estados Unidos