Dynamical mode locking in commensurate structures with an asymmetric deformable substrate potential

Bambi Hu*, Jasmina Tekić

*Corresponding author for this work

Research output: Contribution to journalJournal articlepeer-review

34 Citations (Scopus)
27 Downloads (Pure)

Abstract

The overdamped dynamics in the commensurate structures of the one-dimensional Frenkel-Kontorova model subjected to a parametrized deformable periodic substrate potential and driven by a periodic force is examined. It was found that when the shape of the substrate potential starts to deviate from the standard one, new subharmonic steps appear in the response function even in the structures with an integer value of average interparticle distance while the critical depinning force can even decrease for some values of system parameters. These novel phenomena could be particularly relevant for the charge-density wave systems, vortex lattices, and systems of Josephson-junction arrays.

Original languageEnglish
Article number056602
Number of pages4
JournalPhysical Review E
Volume72
Issue number5
DOIs
Publication statusPublished - Nov 2005

Scopus Subject Areas

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

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