Layered Quasi-2D van der Waals Quantum Materials for Magnetism and Clean Energy with Srinivasa Rao Singamaneni
In recent years, numerous magnetic van der Waals layered quantum materials have been reported, including transition-metal halides, transition-metal chalcogenides, transition-metal phosphorus chalcogenides, and metal oxy- and chalco-halides. Unlike 3D counterparts, layered magnets can be easily and rapidly exfoliated to yield ultra-thin magnets, providing unique opportunities for both fundamental physics and new technologies. Furthermore, these materials enable unprecedented experimental access to the ground states, fundamental excitations, and magnon dynamics, as they are highly susceptible to external stimuli. In this talk, I will present and discuss our recent findings in tuning the magnetic properties of quasi-2D layered van der Waals quantum magnets by intercalation, photoexcitation, proton irradiation, and by the application of pressure. If time permits, I will briefly discuss our recent efforts in solving the problems related to energy materials by employing magnetometry and electron paramagnetic resonance spectroscopy. NSF, NRC, ACS PRF, and DOE supported this work.