Current oscillations in near-commensurate systems
- 1 September 1988
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 38 (7) , 4853-4862
- https://doi.org/10.1103/physrevb.38.4853
Abstract
The phenomena of current oscillations (CO) in response to a dc field is studied by the one-dimensional damped and field-driven sine-Gordon equation. For low damping we find that kink-antikink pairs survive collisions and CO through periodic boundaries is possible. For large damping CO is possible if the field is inhomogeneous, e.g., at contacts, creating kink-antikink pairs periodically. The results can account for data on charged-density waves and vortex lattice motion in superconducting films and annular Josephson junctions.Keywords
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