▎ 摘　　要

Thin NbSe2 retains superconductivity at ahigh in-planemagnetic field up to 30 T. In this work we construct a novel atomicallythin, all van der Waals SQUID, in which current flows between NbSe2 contacts through two parallel graphene weak links. The 2Dplanar SQUID remains uniquely stable at high in-plane field, whichenables tracing critical current interference patterns as a functionof the field up to 4.5 T. From these we extract the evolution of thecurrent distribution up to high fields, demonstrating sub-nanometersensitivity to deviation of current flow from a perfect atomic planeand observing a field-driven transition in which supercurrent redistributesto a narrow channel. We further suggest a new application of the asymmetricSQUID geometry to directly probe the current density in the absenceof phase information.