I study the behavior of materials under the high pressure and temperature conditions of the Earth’s interior. These studies are performed both experimentally and theoretically.
Our group simulates the high-pressure, high-temperature conditions of the Earth’s interior using the laser-heated diamond anvil cell. Current experimental efforts include high-precision equations of state of materials with applications to the composition of the Earth’s core. My work uses infrared laser heating, synchrotron-based high-temperature, high-pressure x-ray diffraction and infrared spectroscopy. Samples are synthesized at Nanotech West Lab at Ohio State University.
Through the first-principles calculation of a material’s electronic structure, our group derives the energetics of materials and the effects of pressure and defects on the thermodynamics properties. We calculate mineralogically complex systems to determine the effects of minor (e.g. Al and Fe) and trace (e.g. H, C) element incorporation in deep mantle minerals. Calculations are performed on The Ohio Supercomputer Center‘s Oakley Cluster.
Our group applies the principles of mineral physics and deep-Earth geophysics on the description of the structure, state, and dynamics of exoplanets. Examples include the effects of light elements in the core on the inference of the gaseous component of a planet, and the consequences of non-Earth-like compositions on planetary structure and dynamics.