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On the Path to High-temperature Josephson Multi-junction Devices

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arxiv 2404.12767 v2 pith:4HUO2BTQ submitted 2024-04-19 cond-mat.supr-con physics.app-ph

On the Path to High-temperature Josephson Multi-junction Devices

classification cond-mat.supr-con physics.app-ph
keywords josephsondesigndevicehigh-temperaturejunctionsmulti-junctionvoltageabilities
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We report our progress in the high-temperature superconductor (HTS) Josephson junction fabrication process founded on using a focused helium ion beam damaging technique and discuss the expected device performance attainable with the HTS multi-junction device technology. Both the achievable high value of characteristic voltage $V_c=I_cR_N$ of Josephson junctions and the ability to design a large number of arbitrary located Josephson junctions allow narrowing the existing gap in design abilities for LTS and HTS circuits even with using a single YBCO film layer. A one-layer topology of active electrically small antenna is suggested and its voltage response characteristics are considered.

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