Single-crystal elastic moduli, anisotropy, and the B1–B2 phase transition of NaCl at high pressures
Feng Xu,
Laurent Belliard,
Chenhui Li
et al.
Abstract:Pressure dependences of the highest and lowest possible longitudinal sound velocities in single crystals of the B1 and B2 phases of NaCl were extracted from examination of their polycrystalline samples using the technique of time-domain Brillouin scattering. Based on the data collected up to 41 GPa, we largely extended the pressure range where single-crystal elastic moduli, Cij(P), and elastic anisotropy of the two cubic phases are measured, especially the experimental data for the B2 phase formed upon the rec… Show more
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