Vortex dynamics in S-shaped Josephson junctions

• Published in: Physica. C, Superconductivity Vol. 434; no. 1; pp. 25 - 30
• Main Authors: Shaju, P.D., Kuriakose, V.C.
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier B.V 01-02-2006; Elsevier Science
• Subjects: Condensed matter: electronic structure, electrical, magnetic, and optical properties; Double-well potential; Exact sciences and technology; Josephson junction; Physics; Properties of type I and type II superconductors; Proximity effects, weak links, tunneling phenomena, and josephson effects, adreev effect, sn and sns junctions; Superconductivity; Vortex dynamics; Vortex lattices ,flux pinning, flux creep; Josephson junction; Double-well potential; Vortex dynamics; Flux line; Flux pinning; Josephson effect; Double well model; Vortices; Magnetic field effects; Magnetic moments; Vortex motion; Josephson junctions
• ISSN: 0921-4534; 1873-2143
• DOI: 10.1016/j.physc.2005.11.010

Vortex dynamics in an S-shaped Josephson junction placed in an in-plane static magnetic field is studied analytically and numerically. The external magnetic field interacts with the magnetic moment of a trapped vortex and induces a double-well potential in the junction. The induced potential can be modulated by varying the magnetic field and the bias current. The proposed geometry is expected to find potential application in the design of vortex based switching devices, and in studying quantum dynamics of vortices.