Excitations in conventional materials already play an important role in modern technology. For example, excitons are used in OLED displays, and Cooper pairs make superconducting magnets possible. By contrast, excitations in correlated quantum materials are still far less understood. In my recent research, I mainly use spin Seebeck effect measurements to study the exotic excitations in these materials. Although this technique is well established in spintronics for investigating spin currents, its application to quantum materials remains limited, and spin currents generated by exotic excitations are still largely unexplored. I hope to help fill this gap and investigate exotic excitations that could become relevant for future quantum technologies.