Matthias Kurt Muntwiler is a Researcher at the Paul Scherrer Institute (PSI) in the Photon Science Division's Laboratory for X-ray Nanoscience and Technologies (LXN). He manages the PEARL beamline at the Swiss Light Source and is a member of the Swiss Nanoscience Institute, supporting user experiments across Europe. He earned his diploma (2000) and PhD (2004) in experimental physics from the University of Zurich, Switzerland, followed by postdoctoral work at the University of Minnesota under Prof. Xiaoyang Zhu focusing on ultrafast polaron dynamics. Muntwiler specializes in surface and interface science of ultrathin films, organic semiconductors, and two-dimensional materials. His expertise spans photoelectron spectroscopy for chemical analysis, band mapping, atomic structure determination, and dynamic processes, emphasizing structure-property relationships. He also develops software for experiment control and machine learning-based structural modeling. His publication record (2008-2020) reveals consistent focus on advanced synchrotron-based characterization of nanomaterials, particularly using photoelectron diffraction to resolve atomic-scale interfaces in systems like h-BN nanomeshes, metal-organic networks, and ferroelectric materials. As designer and manager of the PEARL beamline, Muntwiler integrates soft X-ray spectroscopy with scanning tunneling microscopy to enable atomic-resolution studies of novel materials and molecular adsorbates.








