ARPES study of f-electron Weyl Semimetal CeCoGe₃

Strongly correlated electron systems and topological quantum materials each exhibit novel electronic excitations of great interest to modern science. Materials which combine both attributes offer unique insight into the robustness of topological structures when exposed to strong electron interactions. CeCoGe₃ is a Weyl semimetal (WSM) with enhanced effective mass and low-temperature magnetism. It has predicted Weyl points and nodal lines whose positions and presence depends strongly on electronic correlations. I will present the first angle resolved photoemission spectroscopy (ARPES) measurements on CeCoGe₃ which highlight the topological features of this compound, heavy fermion physics, and the interplay of these two.