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Dynamics of a fluxon in a long Josephson junction with a periodic lattice of inhomogeneities

Journal Article · · Phys. Rev. B: Condens. Matter; (United States)

A model of a damped dc-driven long Josephson junction (LJJ) with periodically installed microresistors or microshorts (microshunts), or crossed by a periodic chain of Abrikosov vortices, is considered. A maximum value of the bias current density admitting pinned states of a fluxon and a minimum value admitting free motion of fluxon are found, the latter being an important generalization of the well-known result of McLaughlin and Scott. For LJJ's with a sinusoidal profile of the inhomogeneity, a current-voltage characteristic is obtained in an explicit form.

Research Organization:
P. P. Shirshov Institute for Oceanology of the U.S.S.R. Academy of Sciences, 23 Krasikov Street, Moscow, 117218, Union of Soviet Socialist Republics
OSTI ID:
7081170
Journal Information:
Phys. Rev. B: Condens. Matter; (United States), Journal Name: Phys. Rev. B: Condens. Matter; (United States) Vol. 38:13; ISSN PRBMD
Country of Publication:
United States
Language:
English