3 papers
cond-mat.supr-con2025
Fabrication and Properties of NbN/NbNx/NbN and Nb/NbNx/Nb Josephson Junctions
Sergey K. Tolpygo, Ravi Rastogi, David Kim +3
Increasing integration scale of superconductor electronics (SCE) requires employing kinetic inductors and self-shunted Josephson junctions (JJs) for miniaturizing inductors and JJs…
cond-mat.supr-con2025
Characterization of Flux Trapping in and Fabrication of Large-Scale Superconductor Circuits Using AC-Biased Shift Registers With 108500 Josephson Junctions
Evan B. Golden, Neel A. Parmar, Vasili K. Semenov +1
A variety of superconductor integrated circuits comprising six ac-powered SFQ shift registers with a total of 27078 bits and 108500 Josephson junctions (JJs) per 5 mm x 5 mm chip h…
cond-mat.supr-con2024
Characterization of Adiabatic Quantum-Flux-Parametrons in the MIT LL SFQ5ee+ Process
Sergey K. Tolpygo, Evan B. Golden, Christopher L. Ayala +4
Adiabatic quantum-flux-parametron (AQFP) logic is a proven energy-efficient superconductor technology for various applications. To address the scalability challenges, we investigat…