Phonon Properties by Inelastic X-ray Scattering Revealing the Structure of the Earth's Interior

Abstract

Inelastic X-ray scattering is a powerful tool to measure phonon properties of materials, even under high pressure conditions. This technique has been applied to determining single crystal elasticity. In this paper, we will introduce recent studies to determine elastic stiffness constants of some Earth's lower mantle materials and gold as a pressure marker. Current and future challenges are discussed.