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Amplitude and frequency dependence of the Shapiro steps in the dc- and ac-driven overdamped Frenkel-Kontorova model
dc.creator | Hu, Bambi | |
dc.creator | Tekić, Jasmina | |
dc.date.accessioned | 2023-12-28T12:05:04Z | |
dc.date.available | 2023-12-28T12:05:04Z | |
dc.date.issued | 2007 | |
dc.identifier.issn | 1539-3755 | |
dc.identifier.issn | 1550-2376 | |
dc.identifier.uri | https://vinar.vin.bg.ac.rs/handle/123456789/12338 | |
dc.description.abstract | The amplitude and frequency dependence of dynamical mode locking phenomena in the dc- and ac-driven overdamped Frenkel-Kontorova model is studied by molecular-dynamics simulations. It was found that the Shapiro steps and the critical depinning force exhibit very complex behavior. The form of amplitude dependence is determined by the frequency of ac force, where the Bessel-type oscillations appear at the high frequencies. With a changing of frequency, after initial increase, the critical depinning force saturates, while the step width remains strongly frequency dependent even at the high frequencies. The dependence of frequency is strongly influenced by the amplitude of ac force where, in the large amplitude regime, the oscillations of the step width and the critical depinning force have been observed at the low frequencies. In the physical processes that stay behind amplitude and frequency oscillations of the step size, an analogy between the influence of amplitude and the period of the ac force is revealed. These oscillations are directly related to the existence and the stability of the interference phenomena in the real systems. | en |
dc.rights | restrictedAccess | |
dc.source | Physical Review E | en |
dc.title | Amplitude and frequency dependence of the Shapiro steps in the dc- and ac-driven overdamped Frenkel-Kontorova model | en |
dc.type | article | en |
dc.rights.license | ARR | |
dc.citation.volume | 75 | |
dc.citation.issue | 5 | |
dc.identifier.doi | 10.1103/PhysRevE.75.056608 | |
dc.citation.rank | aM21 | |
dc.type.version | publishedVersion | |
dc.identifier.scopus | 2-s2.0-34347207992 |
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