The UD MRSEC team is developing and employing a suite of novel experimental characterization techniques that provide important insights into hybrid materials, in which unique properties arise due to interactions between material constituents. The team recently characterized a ferromagnet/topological insulator hybrid material using both ultrafast THz spectroscopy and Brillouin Light Scattering (BLS), which allowed the team to measure both 1) the THz radiation emitted as a result of spin-to-charge conversion, and 2) the thermal spin waves in the constituent materials.