16 citations · 29 across the 3 of their papers we have counts for
4 papers
High-pressure elastic properties of GeO2 polymorphs up to 120 GPa
Gulshan Kumar, Sumit Ghosh, Sharad Babu Pillai +1
We systematically investigated the phase stability and pressure dependence of the elastic properties of four GeO2 polymorphs: rutile-, CaCl2-, alpha-PbO2-, and pyrite-type phases u…
High-pressure Phase Transition of Olivine-type MgGeO to a Metastable Forsterite-III type Structure and their Equation of States
R. V. Divya, G. Kumar, R. E. Cohen +5
Germanates are often used as structural analogs of planetary silicates. We have explored the high-pressure phase relations in MgGeO using diamond anvil cell experiments com…
High-pressure order-disorder transition in MgSiO: Implications for super-Earth mineralogy
Rajkrishna Dutta, Sally. J. Tracy, R. E. Cohen
(Mg, Fe)SiO post-perovskite is the highest pressure silicate mineral phase in the Earth's interior. The extreme pressure and temperature conditions inside large extrasolar plan…
Ultra-high pressure disordered eight-coordinated phase of MgGeO: 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…