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This research demonstrates a significant breakthrough in high-field superconductivity using moiré-engineered graphene junctions, sustaining phase-coherent Josephson interference up to 6 Tesla. By stabilizing quantum states within Hofstadter minibands, the study creates a new platform for robust interferometry that operates deep into regimes previously dominated by the quantum Hall effect. This advancement directly expands the operational limits of superconducting devices and offers novel pathways for high-field quantum sensing applications.
Graphene Junctions Sustain Josephson Effect Up To 6 Tesla

Moire-engineered graphene junctions sustain phase-coherent Josephson interference, exhibiting the effect up to 6 Tesla.
Researchers led by A. D’iez-Carlón have demonstrated sustained phase-coherent Josephson interference in graphene junctions at a magnetic field strength of 6 Tesla, a level exceeding the range…
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