Grain boundary diffusion in a Peierls-Nabarro potential (Articolo in rivista)

Type
Label
  • Grain boundary diffusion in a Peierls-Nabarro potential (Articolo in rivista) (literal)
Anno
  • 2007-01-01T00:00:00+01:00 (literal)
Alternative label
  • Leoni, F; Zapperi, S (2007)
    Grain boundary diffusion in a Peierls-Nabarro potential
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Leoni, F; Zapperi, S (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Univ Roma La Sapienza, Dipartimento Fis, I-00185 Rome, Italy; Univ Roma La Sapienza, CNR, INFM, SMC,Dipartimento Fis, I-00185 Rome, Italy; ISI Fdn, I-10133 Turin, Italy (literal)
Titolo
  • Grain boundary diffusion in a Peierls-Nabarro potential (literal)
Abstract
  • We investigate the diffusion of a grain boundary in a crystalline material. We consider in particular the case of a regularly spaced low-angle grain boundary schematized as an array of dislocations that interact with each other through long-range stress fields and with the crystalline Peierls-Nabarro potential. The methodology employed to analyze the dynamics of the center of mass of the grain boundary and its spatio-temporal fluctuations is based on overdamped Langevin equations. The generality and the efficiency of this technique is proved by the agreement with molecular dynamics simulations. (literal)
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