Structured randomness: jamming of soft discs and pins.
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