2014/11/21 by Yaroslav Zolotaryuk, Zolotaryuk, Yaroslav, Ivan O. Starodub +1
Computer Science · Engineering · Physics and Astronomy · #Advancements in Semiconductor Devices and Circuit Design #Cellular Automata and Applications #FOS: Physical sciences #Pattern Formation and Solitons (nlin.PS) #Semiconductor Quantum Structures and Devices #Superconductivity (cond-mat.supr-con) #cond-mat.supr-con #nlin.PS
paper · pdf · doi:10.48550/arxiv.1411.5885
10 pages, 9 figures
arxiv created 2014/11/21 · openalex publication_date 2014/11/21 · arxiv updated 2014/11/24 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Fluxon dynamics in the dc-biased array of asymmetric three-junction superconducting quantum interference devices (SQUIDs) is investigated. The array of SQUIDs is described by the discrete double sine-Gordon equation. It appears that this equation possesses a finite set of velocities at which the fluxon propagates with the constant shape and without radiation. The signatures of these velocities appear on the respective current-voltage characteristics of the array as inaccessible voltage intervals (gaps). The critical depinning current has a clear minimum as a function of the asymmetry parameter (the ratio of the critical currents of the left and right junctions of the SQUID), which coincides with the minimum of the Peierls-Nabarro potential.