  Considering the growing interest in magnetic materials for unconventional
computing, data storage, and sensor applications, there is active research not
only on material synthesis but also characterisation of their properties. In
addition to structural and integral magnetic characterisations, imaging of
magnetization patterns, current distributions and magnetic fields at nano- and
microscale is of major importance to understand the material responses and
qualify them for specific applications. In this roadmap, we aim to cover a
broad portfolio of techniques to perform nano- and microscale magnetic imaging
using SQUIDs, spin center and Hall effect magnetometries, scanning probe
microscopies, x-ray- and electron-based methods as well as magnetooptics and
nanoMRI. The roadmap is aimed as a single access point of information for
experts in the field as well as the young generation of students outlining
prospects of the development of magnetic imaging technologies for the upcoming
decade with a focus on physics, materials science, and chemistry of planar, 3D
and geometrically curved objects of different material classes including 2D
materials, complex oxides, semi-metals, multiferroics, skyrmions,
antiferromagnets, frustrated magnets, magnetic molecules/nanoparticles, ionic
conductors, superconductors, spintronic and spinorbitronic materials.
