The National Science Foundation awarded a $400,000 Project Grant to the Regents of the University of California at Riverside under the Engineering federal grant program (CFDA 47.041) to study scattering selection rules of chiral phonons and thermal transport. The three-year project, beginning October 1, 2022 and ending September 30, 2025, will use inelastic x-ray scattering from synchrotrons to measure vibrations in solids induced by heat, known as phonons, including circular vibrations. The research aims to quantify thermal transport properties and advance theory and techniques for studying phonons with angular momentum. It seeks to understand phonon dynamics and couplings through selection rules, which could enable control of heat flow and exotic quantum states. Insights may help develop new inelastic x-ray scattering methods and applications to phonon dynamics. The work supports NSF's mission to advance engineering research and education.
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