Berthold Jaeck is an assistant professor at HKUST. His research program focuses on the synthesis and experimental exploration of novel phenomena appearing in topological and correlated quantum materials. To this end, they combine various experimental methods, such as scanning tunneling microscopy, thin film growth, and electric transport measurements. They use scanning tunneling microscopy measurements to visualize the wave functions of topological quasiparticle excitations at atomic length scales and to characterize many-body states arising in partially filled flat bands. In addition, they also use electric transport measurements to detect novel Hall responses arising from topologically non-trivial electronic states. Complementing these efforts, they continuously develop and implement novel microscopy techniques at dilution refrigerator temperatures to expand our tool box for the experimental investigation of quantum materials.