Structure and properties of two superionic ice phases

VB Prakapenka, N Holtgrewe, SS Lobanov… - Nature Physics, 2021 - nature.com
In the phase diagram of water, superionic ices with highly mobile protons within the stable
oxygen sublattice have been predicted at high pressures. However, the existence of …

The carbon content of Earth and its core

RA Fischer, E Cottrell, E Hauri… - Proceedings of the …, 2020 - National Acad Sciences
Earth's core is likely the largest reservoir of carbon (C) in the planet, but its C abundance has
been poorly constrained because measurements of carbon's preference for core versus …

Diamond-graphite nanocomposite synthesized from multi-walled carbon nanotubes fibers

X Yang, J Dong, M Yao, K Hu, H Sun, R Liu, CX Shan… - Carbon, 2021 - Elsevier
Creation of the hybrid nanostructures with superior properties that combine the advantages
of hardest diamond and flexible graphite remains challenging in experiment. Here we report …

Dynamic optical spectroscopy and pyrometry of static targets under optical and x-ray laser heating at the European XFEL

OB Ball, C Prescher, K Appel, C Baehtz… - Journal of Applied …, 2023 - pubs.aip.org
Experiments accessing extreme conditions at x-ray free electron lasers (XFELs) involve
rapidly evolving conditions of temperature. Here, we report time-resolved, direct …

Decomposition of silicon carbide at high pressures and temperatures

K Daviau, KKM Lee - Physical Review B, 2017 - APS
We measure the onset of decomposition of silicon carbide, SiC, to silicon and carbon (eg,
diamond) at high pressures and high temperatures in a laser-heated diamond-anvil cell. We …

Viscosity jump in the lower mantle inferred from melting curves of ferropericlase

J Deng, KKM Lee - Nature communications, 2017 - nature.com
Convection provides the mechanism behind plate tectonics, which allows oceanic
lithosphere to be subducted into the mantle as “slabs” and new rock to be generated by …

Review of experimental and analytical techniques to determine H, C, N, and S solubility and metal–silicate partitioning during planetary differentiation

C Dalou, TA Suer, L Tissandier, WL Ofierska… - Progress in Earth and …, 2024 - Springer
During their formation, terrestrial planets underwent a magma ocean phase during which
their metallic cores segregated from their silicate mantles and their early atmospheres …

Solidus melting of pyrolite and bridgmanite: Implication for the thermochemical state of the Earth's interior

R Pierru, L Pison, A Mathieu, E Gardés… - Earth and Planetary …, 2022 - Elsevier
Melting properties of the deep mantle remain controversial due to experimental difficulties;
eg, reports of solidus temperatures of mantle-relevant compositions span over∼ 700 K at …

Zinc-blende to rocksalt transition in SiC in a laser-heated diamond-anvil cell

K Daviau, KKM Lee - Physical Review B, 2017 - APS
We explore the stability of the ambient pressure zinc-blende polymorph (B3) structure of
silicon carbide (SiC) at high pressures and temperatures where it transforms to the rocksalt …

[HTML][HTML] Implementation and application of the peak scaling method for temperature measurement in the laser heated diamond anvil cell

M Kunz, J Yan, E Cornell, EE Domning… - Review of Scientific …, 2018 - pubs.aip.org
A new design for a double-sided high-pressure diamond anvil cell laser heating set-up is
described. The prototype is deployed at beamline 12.2. 2 of the Advanced Light Source at …