Unconventional magnetic hysteresis of the Josephson supercurrent in magnetic Josephson Junctions

Roberta Satariano,Loredana Parlato,Roberta Caruso,Halima Giovanna Ahmad,Alessandro Miano,Luigi Di Palma,Daniela Salvoni,Domenico Montemurro,Francesco Tafuri,Giovanni Piero Pepe,Davide Massarotti,Giovanni Ausanio,Antonio Vettoliere,Carmine Granata,Gianrico Lamura

2021 IEEE 14th Workshop on Low Temperature Electronics (WOLTE)（2021）

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摘要

In Magnetic Josephson Junctions (MJJs) based on Superconductor-Insulator-Superconductor-Ferromagnet-Superconductor (SIS’FS), we provide evidence of an unconventional magnetic field behavior of the critical current characterized by an inverted magnetic hysteresis, i.e., an inverted shift of the whole magnetic field pattern when sweeping the external field. By thermoremanence measurements of S/F/S t...

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关键词

Magnetic field measurement,Current measurement,Cryogenics,Superconducting magnets,Magnetic hysteresis,Josephson junctions,Magnetic fields

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