ARTEMI – Atomic Resolution TEM Infrastructure of Sweden

Since 2022, ARTEMI has been a national infrastructure for advanced transmission electron microscopy in materials science, physics, inorganic chemistry, and related disciplines. The infrastructure's node universities – Linköping University (host), Uppsala University, Lund University, Stockholm University, KTH, and Chalmers – provide researchers in Sweden and abroad with access to state-of-the-art microscopes, expertise, and advanced methods for studying materials at the atomic level.

In the investigation of materials, X-ray photons (e.g. MAX IV), neutrons (e.g. ESS), or electrons (ARTEMI) are commonly employed. These probes interact with matter in distinct ways, providing complementary information. Electrons have the advantage of being focused by electromagnetic fields and of undergoing strong interactions with materials, which allows spectroscopy and imaging to be performed with extremely high spatial resolution. This makes it possible to resolve individual atoms, offering unique opportunities for research on surfaces, low-dimensional systems, and nanostructured materials.

As materials and devices are increasingly engineered at the nanoscale, direct observation and analysis at this level are becoming ever more important. Operating an advanced electron microscope requires many years of training, and researchers often depend on experienced operators to fully exploit the instrument’s capabilities. The purpose of ARTEMI is therefore to provide researchers with access to expertise, state-of-the-art microscopes, and opportunities to conduct measurements in a cost-efficient and scientifically rewarding way.

Beyond providing access to advanced measurement techniques, ARTEMI also develops new methods in imaging, diffraction, spectroscopy, and in situ / in operando approaches that are made available to the research community. Through continuous and coordinated investments in complementary techniques and state-of-the-art equipment, ARTEMI aims to ensure rapid access to cutting-edge instruments while also enabling future developments.