Glassy phases and driven response of the phase-field-crystal model with random pinning

E. Granato, J.A.P. Ramos, C.V. Achim, Joel Lehikoinen, S.C. Ying, T. Ala-Nissila, Ken Elder

Tutkimustuotos: LehtiartikkeliArticleScientificvertaisarvioitu

12 Sitaatiot (Scopus)
4 Lataukset (Pure)

Abstrakti

We study the structural correlations and the nonlinear response to a driving force of a two-dimensional phase-field-crystal model with random pinning. The model provides an effective continuous description of lattice systems in the presence of disordered external pinning centers, allowing for both elastic and plastic deformations. We find that the phase-field crystal with disorder assumes an amorphous glassy ground state, with only short-ranged positional and orientational correlations, even in the limit of weak disorder. Under increasing driving force, the pinned amorphous-glass phase evolves into a moving plastic-flow phase and then, finally, a moving smectic phase. The transverse response of the moving smectic phase shows a vanishing transverse critical force for increasing system sizes.
AlkuperäiskieliEnglanti
Artikkeli031102
Sivut1-8
JulkaisuPhysical Review E
Vuosikerta84
Numero3
DOI - pysyväislinkit
TilaJulkaistu - 2011
OKM-julkaisutyyppiA1 Julkaistu artikkeli, soviteltu

Tutkimusalat

  • disordered system
  • multiscale modeling
  • Phase-field crystal
  • two-dimensional glass

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  • Siteeraa tätä

    Granato, E., Ramos, J. A. P., Achim, C. V., Lehikoinen, J., Ying, S. C., Ala-Nissila, T., & Elder, K. (2011). Glassy phases and driven response of the phase-field-crystal model with random pinning. Physical Review E, 84(3), 1-8. [031102]. https://doi.org/10.1103/PhysRevE.84.031102