Experimental study of fluxon dynamics in long Josephson junctions with a regular lattice of inhomogeneities

✍ Scribed by Alexey V. Ustinov

• Book ID: 104356502
• Publisher: Elsevier Science
• Year: 1990
• Tongue: English
• Weight: 342 KB
• Volume: 165-166
• Category: Article
• ISSN: 0921-4526
• DOI: 10.1016/s0921-4526(09)80413-4

✦ Synopsis

Moscow d1str1ct, 142432 USSR An overview of several effects experimentally observed in long quasi-onedimensional Josephson junctions with an artificially prepared lattice of inhomogeneities is presented. An interaction of fluxons with inhomogeneities gives rise to a variety of new phenomena in Josephson junctions. A fine structure on the first zero-field step due to the radiation of a single fluxon was observed. In the large magnetic field both the effects of pinning and a multifluxon flux-flow were studied. In the flux-flow regime two new types of steps appeared in the IV-curves. These steps are explained in terms of Fiske steps synchronization and propagation of defects (supersolitons) in a fluxon chain.