Magnetic flux imaging in a 3D superconductor integrated circuit
Tong Ren Andres Glatz Boldizsar Jankó Justin L. Mallek Sergey K. Tolpygo Vitalii K. Vlasko-Vlasov
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Abstract
We report on imaging magnetic flux distributions in a multilayered superconductor integrated circuit which emerge during magnetization and after field cooling of the circuit in the DC magnetic field. The obtained complicated field maps expose the flux propagation across the patterned superconducting ground planes sandwiching layers with Josephson junction-based logic cells, fine wire grid around the functional units, and multiple superconducting fill structures located in different inner layers. The observed intricate flux distributions are explained by specific patterns of Meissner screening currents and superconducting critical currents in different mutually interacting parts of the integrated circuit. Our results provide important insights into possible ways of improving the protection of superconductor integrated circuits from magnetic fields and their resilience against flux trapping.引用本文复制引用
Tong Ren,Andres Glatz,Boldizsar Jankó,Justin L. Mallek,Sergey K. Tolpygo,Vitalii K. Vlasko-Vlasov.Magnetic flux imaging in a 3D superconductor integrated circuit[EB/OL].(2025-12-04)[2026-01-17].https://arxiv.org/abs/2512.17921.学科分类
电工基础理论/电工材料
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