Dr. Kyle Shen, director of Laboratory of Atomic & Solid State Physics, Cornell University, spent a Sabbatical Stay in MULFOX-ICMAB for a year (2022.2023). Prof. Shen investigates many-body interactions in quantum materials, with the aim of controlling potentially exotic properties such as superconductivity, magnetism, metal-insulator transitions, and topological properties. Prof. Shen is widely recognized by his expertise in angle-resolved photoemission spectroscopy (ARPES), and synchrotron-based x-ray probes including x-ray absorption spectroscopy and resonant x-ray scattering. A major research thrust is the synthesis and investigation of artificially engineered heterostructures of quantum materials synthesized by molecular beam epitaxy (MBE) with strong electron correlations which allow new emergent states to be created at the interface.