Nonlinear dynamics of intrinsic Josephson junctions under an applied current

• Published in: Physica. C, Superconductivity Vol. 463-465; pp. 993 - 996
• Main Authors: Hayashi, M., Suzuki, M., Onuki, J., Ebisawa, H.
• Format: Journal Article Conference Proceeding
• Language: English
• Published: Amsterdam Elsevier B.V 01.10.2007; Elsevier Science
• Subjects: Breather mode; Condensed matter: electronic structure, electrical, magnetic, and optical properties; Exact sciences and technology; Intrinsic Josephson junction; Physics; Proximity effects, weak links, tunneling phenomena, and josephson effects, adreev effect, sn and sns junctions; Sine-Gordon equation; Superconductivity; 74.81.Fa; Intrinsic Josephson junction; Breather mode; Sine-Gordon equation; 74.72.−h; Linearized equation; Josephson effect; 74.81.Fa; 74.72.-h; Eigenmode; Digital simulation; Differential equations; High-Tc superconductors; Intrinsic Josephson junction; Sine-Gordon equation; Breather mode; Josephson junctions; Plasmons; Non linear effect
• ISSN: 0921-4534; 1873-2143
• DOI: 10.1016/j.physc.2007.02.046

Nonlinear dynamics of Josephson plasma oscillations in intrinsic Josephson junctions formed in high Tc superconductors is studied based on numerical simulations. The dynamics is described by a differential equation similar to sine-Gordon equation. We discuss within classical dynamics that the eigenmodes, well defined in linearized equation, are modified by the nonlinear effects. Especially we concentrate on the formation of the so-called “breather modes”, which gives rise to the mixing of eigenmodes.