Nanowerk  April 24, 2024 Extensive efforts have been undertaken to combine superconductivity and the quantum Hall effect so that Cooper-pair transport between superconducting electrodes in Josephson junctions is mediated by one-dimensional edge states. So far it has proven challenging to achieve detectable supercurrents through quantum Hall conductors. An international team of researchers (UK, South Korea, Spain, Japan, USA – Yale University) showed that domain walls in minimally twisted bilayer graphene support exceptionally robust proximity superconductivity in the quantum Hall regime, allowing Josephson junctions to operate in fields close to the upper critical field of superconducting electrodes. The critical current was […]