Bulk modulus of solid deuterium at 15 K

Abstract

X-ray powder diffraction experiments for solid n-D 2 at 15 K were performed at pressures up to 57 GPa. In phase II, as well as in phase I, the center of each deuterium molecule is located on an hcp lattice point. The bulk modulus ( K 0) and its pressure derivative ( K 0 ′) at 15 K were determined as 0.386(23) GPa and 6.43(10), respectively.