Microwave oscillator based on an intrinsic BSCCO-type Josephson junction

Niels Falsig Pedersen, Søren Peder Madsen

Research output: Contribution to journalJournal articleResearchpeer-review

283 Downloads (Pure)


The electrical behavior of anisotropic BSCCO single crystals is modeled by mutually coupled long Josephson junctions. For the basic fluxon modes with one fluxon per layer, the fluxons will arrange themselves in an anti phase configuration (triangular lattice) because of the mutual repulsion. We are interested in the in-phase modes (square lattice) desired for many potential applications. We consider two mechanisms (i) intrinsic locking by out of phase oscillations at the trailing edge and (ii) locking by an external high-Q resonator with a resonance frequency corresponding to fluxon in-phase motion. The resulting model is a set of coupled nonlinear partial differential equations. By direct numerical simulations we have demonstrated that the qualitative behavior of the combined intrinsic Josephson junction and cavity system can be understood on the basis of general concepts of nonlinear oscillators interacting with a resonator. For some region of the parameter space it is possible to reach the desired synchronous state, making the system potentially suitable for applications. We also consider the system in the flux flow mode under a high magnetic field.
Original languageEnglish
JournalI E E E Transactions on Applied Superconductivity
Issue number2
Pages (from-to)948-951
Publication statusPublished - 2005

Bibliographical note

Copyright: 2005 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE

Fingerprint Dive into the research topics of 'Microwave oscillator based on an intrinsic BSCCO-type Josephson junction'. Together they form a unique fingerprint.

Cite this