English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Multistep dynamical phase transition from the locked to the running state ofatoms in response to a dc external force is studied by MD simulations of thegeneralized Frenkel-Kontorova model in the underdamped limit. We show that thehierarchy of transition recently reported [Braun et al, Phys. Rev. Lett. 78,1295 (1997)] strongly depends on the value of the friction constant. A simplephenomenological explanation for the friction dependence of the variouscritical forces separating intermediate regimes is given.Comment: 12 Revtex Pages, 4 EPS figure

Dynamical phase diagram of the dc-driven underdamped Frenkel-Kontorova chain