Corpus ID: 238259553

Spontaneous frequency shift and phase retardation of coupled Josephson oscillations in cuprate superconductors

@inproceedings{Kobayashi2021SpontaneousFS,
  title={Spontaneous frequency shift and phase retardation of coupled Josephson oscillations in cuprate superconductors},
  author={Ryosuke Kobayashi and Ken Hayama and Shuma Fujita and Manabu Tsujimoto and Itsuhiro Kakeya},
  year={2021}
}
We examine coupling interactions used to synchronize macroscopic Josephson oscillations induced in intrinsic Josephson junction (IJJ) mesa stacks made of Bi2212 single crystals. Synchronized emissions of terahertz electromagnetic (EM) waves are detected under common voltage and current bias operations of two connected mesas with close individual emission frequencies, while uncoupled and bimodal emissions are frequently observed in two mesas with different individual emission frequencies… Expand

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