Mass transfer in the Frenkel-Kontorova chain initiated by molecule impact

A. Moradi Marjaneh, Danial Saadatmand, I. Evazzade, R. I. Babicheva, E. G. Soboleva, N. Srikanth, Kun Zhou, E. A. Korznikova, S. V. Dmitriev

Research output: Contribution to journalArticlepeer-review

19 Citations (Scopus)


The Frenkel-Kontorova chain with a free end is used to study initiation and propagation of crowdions (antikinks) caused by impact of a molecule consisting of K atoms. It is found that molecules with 1<K<10 are more efficient in the initiation of crowdions as compared to a single atom (K=1) because the total energy needed to initiate the crowdions by molecules is smaller. This happens because a single atom can initiate in the chain only sharp, fast-moving crowdions that require relatively large energy. A molecule has finite length, and that is why it is able to excite a wider crowdion with a smaller velocity and smaller energy. Our results can shed light on the atomistic mechanisms of mass transfer in crystals subject to atom and molecule bombardment.

Original languageEnglish
Article number023003
JournalPhysical Review E
Issue number2
Publication statusPublished - 23 Aug 2018

ASJC Scopus subject areas

  • Statistical and Nonlinear Physics
  • Statistics and Probability
  • Condensed Matter Physics

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