Year-end Sale % OFF 
Abstract
Intrinsic stacked array of Josephson junctions will find potential application as voltage standard or HTSC Josephson spectral detector if internal Josephson oscillations in different layers can be synchronized under electromagnetic radiation. In our experiments we studied synchronization is stacked array of Josephson oscillations contained up to 2500 junctions in Bi 2Sr 2CaCu 2O 8+δ. Phase locking of the internal Josephson oscillation in array to externally applied microwave radiation was manifested by observation of the collective Shapiro steps. Synchronization of all junctions in array was possible in the vortex glass state in high magnetic fields and vortex liquid state on the B– T c-axis vortex phase diagram in frequency range 80–140 GHz. In those regions damping is significantly enhanced and hysteresis on I– V characteristics collapsed. Observations deny major opinion that intrinsic Josephson junctions in Bi 2Sr 2CaCu 2O 8+δ are always underdamped. We interpret our results as a reflecting the pancake vortex disorder and fluctuations in CuO 2 layers.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
