[HTML][HTML] Electronic density response of warm dense matter

T Dornheim, ZA Moldabekov, K Ramakrishna… - Physics of …, 2023 - pubs.aip.org
Matter at extreme temperatures and pressures—commonly known as warm dense matter
(WDM)—is ubiquitous throughout our Universe and occurs in astrophysical objects such as …

Measuring the electrical resistivity of liquid iron to 1.4 Mbar

K Ohta, S Suehiro, SI Kawaguchi, Y Okuda… - Physical Review Letters, 2023 - APS
We determined the electrical resistivity of liquid Fe to 135 GPa and 6680 K using a four-
probe method in a diamond-anvil cell combined with two novel techniques:(i) enclosing a …

Electrical conductivity of iron in Earth's core from microscopic Ohm's law

K Ramakrishna, M Lokamani, A Baczewski… - Physical Review B, 2023 - APS
Understanding the electronic transport properties of iron under high temperatures and
pressures is essential for constraining geophysical processes. The difficulty of reliably …

Electrical and thermal conductivity of fcc and hcp iron under conditions of the Earth's core from ab initio simulations

U Kleinschmidt, M French, G Steinle-Neumann… - Physical Review B, 2023 - APS
We use ab initio simulations based on density functional theory to calculate the electrical
and thermal conductivity of solid iron in face-centered cubic and hexagonal phases at high …

MHz free electron laser x-ray diffraction and modeling of pulsed laser heated diamond anvil cell

N Jaisle, D Cébron, Z Konôpková… - Journal of Applied …, 2023 - pubs.aip.org
A new diamond anvil cell experimental approach has been implemented at the European x-
ray Free Electron Laser, combining pulsed laser heating with MHz x-ray diffraction. Here, we …

Effect of iron content on thermal conductivity of ferropericlase: Implications for planetary mantle dynamics

Y Zhang, T Yoshino, M Osako - Geophysical Research Letters, 2023 - Wiley Online Library
We have simultaneously measured thermal conductivity (λ) and thermal diffusivity (κ) for
polycrystalline ferropericlase with different Fe contents (Fp3, Fp5, Fp10, Fp20, Fp30 and …

Electrical Conductivity of Dense MgSiO3 Melt Under Static Compression

Y Okuda, K Hirose, K Ohta… - Geophysical …, 2024 - Wiley Online Library
The magnetic fields of terrestrial planets are created by core convection. Molten silicate
mantles could also generate magnetic fields through their convective motion, known as a …

Reduced charge transfer in mixed-spin ferropericlase inferred from its high-pressure refractive index

L Schifferle, S Speziale, B Winkler, V Milman… - American …, 2024 - degruyter.com
Physical properties of mantle minerals are essential for comprehensive geodynamic
modeling. High-pressure experiments allow measurements of physical properties but …

[HTML][HTML] Electrical conductivity of siderite and the effect of the spin transition of iron

I Mashino, T Yoshino, T Mitsui, K Fujiwara… - Physics and Chemistry …, 2024 - Springer
We have conducted electrical conductivity measurements of FeCO3 siderite under high
pressure up to 63 GPa in order to understand the nature and effect of iron spin transition and …

Influence of oxygen on electronic correlation and transport in iron in the outer Earth's core

GG Blesio, LV Pourovskii, M Aichhorn, M Pozzo… - arXiv preprint arXiv …, 2023 - arxiv.org
Knowing the transport properties of iron under realistic conditions present in the Earth's core
is essential for the geophysical modeling of Earth's magnetic field generation. Besides by …