Ultra-high pressure disordered eight-coordinated phase of Mg${}_2$GeO${}_4$: Analogue for super-Earth mantles

Rajkrishna Dutta, Sally J. Tracy, Ronald E. Cohen +9

Mg2GeO4 is an analogue for the ultra-high pressure behavior of Mg2SiO4, so we have investigated magnesium germanate to 275 GPa and over 2000 K using a laser-heated diamond anvil ce…