The interplay between electronic, magnetic, and structural properties in FeO, Xiang Li

The interplay between electronic, magnetic, and structural properties in FeO

Xiang Li

ESRF-The European Synchrotron (ESRF), France

Abstract

Iron monoxide (FexO) is a key component of the Earth’s lower mantle, influencing deep Earth processes and redox cycles, but it is also of high interest for modern high tech industry (Kupenko et al., 2019; Ovsyannikov et al., 2016; Dobson and Brodholt, 2005, Wei and Mao, 1994). Despite its importance, the interplay between its electronic, magnetic, and structural properties at high pressures and temperatures is poorly understood. I will present our investigation of FexO up to 94 GPa and 1200 K (Li et al., 2024) using Synchrotron Mössbauer Source spectroscopy and single-crystal X-ray diffraction, revealing how its properties evolve and their implications for the Earth’s deep interior.

References:

D. P. Dobson & J. P. Brodholt, Nature 434, 371 (2005).

I. Kupenko, G. Aprilis, D. M. Vasiukov, et al., Nature 570, 102 (2019).

S. V. Ovsyannikov, M. Bykov, E. Bykova, et al., Nat. Chem. 8, 501 (2016).

X. Li, E. Bykova, D. Vasiukov et al., Commun. Phys. 7, 305 (2024)

Y. W. Fei and H. K. Mao, Science 266, 1678 (1994).

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