Tsujimoto, Manabu and Wen, Yifan and Maeda, Yoshiho and Elarabi, Asem and Şimşek, Yılmaz and Welp, Ulrich and Kwok, Wai Kwong and Adachi, Shintaro and Watanabe, Takao and Kakeya, Itsuhiro (2025) Terahertz emission from intrinsic Josephson junctions in trilayer cuprate superconductor Bi2Sr2Ca2Cu3O10+δ. Applied Physics Express, 18 (7). ISSN 1882-0778 (Print) 1882-0786 (Online)
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Official URL: https://dx.doi.org/10.35848/1882-0786/adda8e
Abstract
This study presents the first observation of a continuous electromagnetic terahertz wave emission from mesoscopic mesas of the trilayer high- T c superconductor, Bi2Sr2Ca2Cu3O10+δ (Bi-2223), a putative Josephson plasma emitter utilizing intrinsic Josephson junctions. Two types of Bi-2223 crystals, optimally doped and underdoped, were prepared via thermal annealing under controlled partial oxygen pressures, and their electrical and emission characteristics were compared. A weak, but detectable terahertz emission was observed from the underdoped Bi-2223 mesas, whereas no radiation was observed from the optimally doped ones. We associate the low terahertz emission output with the weak capacitive coupling between the intrinsic junctions in the trilayer system.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Bi-2223; intrinsic Josephson junction; terahertz emitter |
| Divisions: | Sabancı University Nanotechnology Research and Application Center |
| Depositing User: | Yılmaz Şimşek |
| Date Deposited: | 03 Sep 2025 12:20 |
| Last Modified: | 03 Sep 2025 12:20 |
| URI: | https://research.sabanciuniv.edu/id/eprint/52116 |
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