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 …

The terrestrial planets accreted from a diverse suite of solar system materials ranging from
strongly O-deficient materials similar to enstatite chondrites via ordinary chondrite materials …

Accurate knowledge of the mineralogy is essential for understanding the lower mantle,
which represents more than half of Earth's volume. CaSiO3 perovskite is believed to be the …

Deciphering the origin of seismic velocity heterogeneities in the mantle is crucial to
understanding internal structures and processes at work in the Earth. The spin crossover in …

Iron can adopt different spin states in the lower mantle. Previous studies indicate that the
dominant lower-mantle phase, magnesium silicate perovskite (which contains at least half of …

Using density functional theory+ Hubbard U (DFT+ U) calculations, we investigate how
aluminum affects the spin crossover of iron in MgSiO3 perovskite (Pv) and post-perovskite …

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 …

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 …

We report ab initio (LDA+ Usc) calculations of thermoelastic properties of ferric iron (Fe3+)‐
and aluminum (Al)‐bearing bridgmanite (MgSiO3 perovskite), the main Earth forming phase …

Earth's lower mantle is a potential water reservoir. The physical and chemical properties of
the region are in part controlled by the Fe3+/ΣFe ratio and total iron content in bridgmanite …