Hydrogenation-driven formation of local magnetic moments in FeO2 Hx

Alexey O. Shorikov, Alexander I. Poteryaev, Vladimir I. Anisimov, Sergey V. Streltsov

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)


The electronic and magnetic properties of recently discovered important constituent of the earth's lower mantle FeO2H was investigated by means of the density functional theory combined with the dynamical mean-field theory. The addition of hydrogen to the parent FeO2 compound, which is an uncorrelated bad metal, destroys the most important ingredient of its electronic structure, namely O-O molecular orbitals. In effect, the physical properties of FeO2 and FeO2H turn out to be completely different, FeO2H is a correlated metal with a mass renormalization (m∗/m∼1.7), and the magnetic moments on Fe ions become localized with the Curie-Weiss type of uniform magnetic susceptibility.

Original languageEnglish
Article number165145
JournalPhysical Review B
Issue number16
Publication statusPublished - 29 Oct 2018
Externally publishedYes


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