Effects of the electronic spin transitions of iron in lower mantle minerals: Implications for deep mantle geophysics and geochemistry
We have critically reviewed and discussed currently available information regarding the spin
and valence states of iron in lower mantle minerals and the associated effects of the spin …
and valence states of iron in lower mantle minerals and the associated effects of the spin …
Computational high‐pressure chemistry: Ab initio simulations of atoms, molecules, and extended materials in the gigapascal regime
F Zeller, CM Hsieh, W Dononelli… - Wiley Interdisciplinary …, 2024 - Wiley Online Library
The field of liquid‐phase and solid‐state high‐pressure chemistry has exploded since the
advent of the diamond anvil cell, an experimental technique that allows the application of …
advent of the diamond anvil cell, an experimental technique that allows the application of …
Ultrafast x-ray detection of low-spin iron in molten silicate under deep planetary interior conditions
The spin state of Fe can alter the key physical properties of silicate melts, affecting the early
differentiation and the dynamic stability of the melts in the deep rocky planets. The low-spin …
differentiation and the dynamic stability of the melts in the deep rocky planets. The low-spin …
Valence and spin states of iron are invisible in Earth's lower mantle
Heterogeneity in Earth's mantle is a record of chemical and dynamic processes over Earth's
history. The geophysical signatures of heterogeneity can only be interpreted with …
history. The geophysical signatures of heterogeneity can only be interpreted with …
Spin transitions in mantle minerals
J Badro - Annual Review of Earth and Planetary Sciences, 2014 - annualreviews.org
Mantle minerals at shallow depths contain iron in the high-spin electronic state. The crystal-
field splitting energy increases with increasing pressure, which can favor the low-spin state …
field splitting energy increases with increasing pressure, which can favor the low-spin state …
Lower mantle electrical conductivity based on measurements of Al, Fe-bearing perovskite under lower mantle conditions
R Sinmyo, G Pesce, E Greenberg… - Earth and Planetary …, 2014 - Elsevier
Laboratory measurements of the electrical conductivities of minerals provide important
constraints on the chemistry and structure of the Earth's interior. We have measured the …
constraints on the chemistry and structure of the Earth's interior. We have measured the …
Seismological expression of the iron spin crossover in ferropericlase in the Earth's lower mantle
The two most abundant minerals in the Earth's lower mantle are bridgmanite and
ferropericlase. The bulk modulus of ferropericlase (Fp) softens as iron d-electrons transition …
ferropericlase. The bulk modulus of ferropericlase (Fp) softens as iron d-electrons transition …
Effects of government policy, quality of human resources and professional institutions on workforce competitiveness using welding technology as mediating variable
Purpose This paper aims to examine and analyze the effects of government policy, quality of
human resources and professional institutions on workforce competitiveness using welding …
human resources and professional institutions on workforce competitiveness using welding …
Effects of the Fe3+ spin transition on the equation of state of bridgmanite
We have investigated the equation of state of Fe‐bearing bridgmanite,(Mg0. 9Fe0. 1) SiO3,
using synchrotron X‐ray diffraction in diamond anvil cells up to 125 GPa and 300 K …
using synchrotron X‐ray diffraction in diamond anvil cells up to 125 GPa and 300 K …
Equation of state and hyperfine parameters of high-spin bridgmanite in the Earth's lower mantle by synchrotron X-ray diffraction and Mössbauer spectroscopy
In this study, we performed synchrotron X-ray diffraction (XRD) and Mössbauer spectroscopy
(SMS) measurements on two single-crystal bridgmanite samples [Mg0. 94 F e 0.04 2+ F e …
(SMS) measurements on two single-crystal bridgmanite samples [Mg0. 94 F e 0.04 2+ F e …