Crystal chemistry and compressibility of Fe0.5Mg0.5Al0.5Si0.5O3 and FeMg0.5Si0.5O3 silicate perovskites at pressures up to 95 GPa

Silicate perovskite, with the mineral name bridgmanite, is the most abundant mineral in the Earth’s lower mantle. We investigated crystal structures and equations of state of two perovskite-type Fe3+-rich phases, FeMg0.5Si0.5O3 and Fe0.5Mg0.5Al0.5Si0.5O3, at high pressures, employing single-crystal...

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Bibliografische Detailangaben

Hauptverfasser:	Iuliia Koemets, Biao Wang, Egor Koemets, Takayuki Ishii, Zhaodong Liu, Catherine McCammon, Artem Chanyshev, Tomo Katsura, Michael Hanfland, Alexander Chumakov, Leonid Dubrovinsky
Format:	Artigo
Sprache:	Inglês
Veröffentlicht:	Frontiers Media S.A. 2023-10-01
Schriftenreihe:	Frontiers in Chemistry
Schlagworte:	bridgmanite silicate perovskite double perovskite spin transition single-crystal X-ray diffraction synchrotron Mössbauer spectroscopy
Online-Zugang:	https://www.frontiersin.org/articles/10.3389/fchem.2023.1258389/full
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