Magnetic properties of amorphous iron germanium films

The emergence of topological phases in condensed matter has traditionally been associated with symmetry (breaking) in long-range-ordered systems. Recent works on amorphous topological insulators, amorphous topological metals, amorphous superconductors, and amorphous topological magnetism demonstrated that this requirement of symmetry breaking also holds for disordered materials where larger exchange interactions and higher critical temperatures may arise. The underlying mechanisms of this emergent materials class are not yet understood. My thesis aims to elucidate the relationship between short-range order and magnetic properties of amorphous iron germanium films with different composition and thickness.