Fundamental Condensed Matter Physics using X-ray Photon Science

Our research spans from well-defined model systems to more real and complex systems. In particular, we study electron dynamics on different time scales (from attoseconds to nanoseconds), structure-function relationships, and how molecules interact with surfaces in different environments. We also investigate quantum effects in low dimensions such as surfaces, interfaces, and quantum materials. In this way, the research area combines knowledge of single molecules and three-dimensional solid materials.

To address such a broad range of research questions, we use a rich set of X-ray spectroscopy techniques, including XPS, XES, HERFD-XAS, ARPES, time-resolved PES, and NEXAFS, and obtain complementary information using microscopy tools (for example, STM, AFM, LEEM, PEEM). We perform our experiments both at synchrotron radiation facilities and using infrastructure at the Ångström Laboratory (e.g., HAXPES).

Our studies are conducted under both static and dynamic conditions (operando). A significant aspect of our work involves developing new methodologies and instruments to gain completely new atomic-level insights and explore novel phenomena.