Three-Dimensional Phase-Kink State in Thick Stack of Josephson Junctions and Terahertz Radiation

Abstract

The dynamics of superconductivity phase in thick stack of Josephson junctions with strong inductive coupling, such as the one realized in layered high-$T_c$ cuprates and possibly the recently discovered FeAs-based superconductors, is investigated under a c-axis bias voltage and in the absence of an external magnetic field. The kink state found previously by the present authors is extended to three dimensions for both rectangular and cylindrical geometries. The IV characteristics are calculated and the distributions of electromagnetic field inside the samples are clarified. The solution for a cylindrical mesa exhibits a higher resonating frequency than that of a square mesa with the same linear size by a factor of $\sim 2.4$. More importantly, from the radius dependence of the resonance frequency for the cylinder geometry it is possible to confirm directly the kink state, and thus to reveal the mechanism of the strong radiation discovered in recent experiments.

6 pages, 8 figures. to be published in Phys. Rev. B. to be published in Phys. Rev. B

References in corpus (3)

• Possible Dynamic States in Inductively Coupled Intrinsic Josephson Junctions of Layered High-$T_c$ Superconductors
• Resonant electromagnetic emission from intrinsic Josephson-junction stacks with laterally modulated Josephson critical current
• Computer Simulation on Terahertz Emission from Intrinsic Josephson Junctions of High-T_c Superconductors

Cited by in corpus (16)

• Geometrical Resonance Conditions for THz Radiation from the Intrinsic Josephson Junctions in Bi2Sr2CaCu2O8+d
• Phase dynamics of inductively coupled intrinsic Josephson junctions and terahertz electromagnetic radiation
• Mechanism of Terahertz Electromagnetic Wave Emission from Intrinsic Josephson Junctions
• Evidence for a Dual-Source Mechanism of THz Radiation from Rectangular Mesas of Single Crystalline \bm{$\mathrm{B}{\mathrm{i}}_2\mathrm{S}{\mathrm{r}}_2\mathrm{CaC}{\mathrm{u}}_2{\mathrm{O}}_{8+\delta }$} Intrinsic Josephson Junctions
• Radiation from a Josephson STAR-emitter
• Thermal and electromagnetic properties of Bi${}_2$Sr${}_2$CaCu${}_2$O${}_8$ intrinsic Josephson junction stacks studied via one-dimensional coupled sine-Gordon equations
• Cavity mode waves during terahertz radiation from rectangular Bi${}_2$Sr${}_2$CaCu${}_2$O${}_{8+\delta }$ mesas
• Cavity phenomena in mesas of cuprate high-$T_c$ superconductors under voltage bias
• Monolithic superconducting emitter of tunable circularly polarized terahertz radiation
• Phase Dynamics in Intrinsic Josephson Junctions and its Electrodynamics
• Stationary phase-kink states and dynamical phase transitions controlled by surface impedance in THz wave emission from intrinsic Josephson junctions
• Optimal Condition for Strong Terahertz Radiation from Intrinsic Josephson Junctions
• Pair-Hopping Mechanism for Layered Superconductors
• Terahertz emission from mutually synchronized standalone Bi2Sr2CaCu2O8+x intrinsic-Josephson-junction stacks
• Emission of Circularly Polarized Terahertz Wave from Inhomogeneous Intrinsic Josephson Junctions
• Stability of the Kink State in a Stack of Intrinsic Josephson Junctions