At CERN, the European Organization for Nuclear Research, physicists employ the largest particle accelerators in the world to study how our world is built at the fundamental level by colliding sub-atomic particles. These accelerators rely on large numbers of normal and superconducting magnets to steer and focus the particle beam to their collision points.

Paragraf has partnered with the Magnetic Measurements section at CERN, which is in charge of testing these magnets using the latest available techniques. Together, CERN and Paragraf have made the remarkable discovery that Paragraf’s Graphene Hall effect Sensor (GHS) exhibits negligible ‘planar Hall effect’ owing to the 2D nature of graphene.

Existing Hall effect sensors all exhibit planar Hall effects, which manifest as artefacts in magnetic measurements and significantly limit measurement resolution. The GHS has therefore unlocked the potential for new kinds of high accuracy magnet characterisation techniques, which this exciting collaboration will aim to develop.