Frequency oscillations of the Shapiro steps

Bambi Hu; Jasmina Tekić

doi:10.1063/1.2710788

Frequency oscillations of the Shapiro steps

Bambi Hu, Jasmina Tekić^*

^*Corresponding author for this work

Research output: Contribution to journal › Journal article › peer-review

20 Citations (Scopus)

Abstract

The frequency dependence of the dynamical-mode locking phenomena in the ac driven dissipative Frenkel-Kontorova model is studied by the molecular-dynamics simulations. It was found that the Shapiro steps exhibit very strong frequency dependence influenced by the amplitude of ac force. At the low frequencies, in the large amplitude regime, the oscillations of the step width and the critical depinning force have been observed. These oscillations are directly related to the stability and the existence of the interference effects in the real systems.

Original language	English
Article number	102119
Number of pages	3
Journal	Applied Physics Letters
Volume	90
Issue number	10
DOIs	https://doi.org/10.1063/1.2710788
Publication status	Published - 5 Mar 2007

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10.1063/1.2710788

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title = "Frequency oscillations of the Shapiro steps",

abstract = "The frequency dependence of the dynamical-mode locking phenomena in the ac driven dissipative Frenkel-Kontorova model is studied by the molecular-dynamics simulations. It was found that the Shapiro steps exhibit very strong frequency dependence influenced by the amplitude of ac force. At the low frequencies, in the large amplitude regime, the oscillations of the step width and the critical depinning force have been observed. These oscillations are directly related to the stability and the existence of the interference effects in the real systems.",

author = "Bambi Hu and Jasmina Teki{\'c}",

note = "This research was supported in part by the Hong Kong Research Grants Council (RGC) and the Hong Kong Baptist University Faculty Research Grant (FRG). Publisher copyright: {\textcopyright} 2007 American Institute of Physics.",

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AU - Tekić, Jasmina

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N2 - The frequency dependence of the dynamical-mode locking phenomena in the ac driven dissipative Frenkel-Kontorova model is studied by the molecular-dynamics simulations. It was found that the Shapiro steps exhibit very strong frequency dependence influenced by the amplitude of ac force. At the low frequencies, in the large amplitude regime, the oscillations of the step width and the critical depinning force have been observed. These oscillations are directly related to the stability and the existence of the interference effects in the real systems.

AB - The frequency dependence of the dynamical-mode locking phenomena in the ac driven dissipative Frenkel-Kontorova model is studied by the molecular-dynamics simulations. It was found that the Shapiro steps exhibit very strong frequency dependence influenced by the amplitude of ac force. At the low frequencies, in the large amplitude regime, the oscillations of the step width and the critical depinning force have been observed. These oscillations are directly related to the stability and the existence of the interference effects in the real systems.

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Frequency oscillations of the Shapiro steps

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