Applied Physics Letters 126, 232602 (2025)

Vittorio Buccheri, François Joint, Kazi Rafsamjani Amin, Tosson Elalaily, Olivér Kürtössy, Zoltán Scherübl, Gergő Fülöp, Thomas Kanne, Jesper Nygård, Péter Makk, Szabolcs Csonka, Simone Gasparinetti

Preprint Published version

 

What if superconducting electronics had the flexibility of transistors? We explore gate control of critical current in an Al/InAs nanowire embedded in a λ/4 resonator. Changes in resonant frequency and quality factor align with an effective temperature in the Mattis-Bardeen model. We also measure gate-response times of tens of nanoseconds, highlighting the system’s potential for cryoelectronic applications like switches and fast superconducting electronics.