journal article·2023-06-12Open access

Phase transitions and spin state of iron in FeO under the conditions of Earth's deep interior

E. Greenberg, R. Nazarov, A. Landa, J. Ying, R. Q. Hood, B. Hen, R. Jeanloz, V. B. Prakapenka, V. V. Struzhkin, G. Kh. Rozenberg, I. V. Leonov

Physical Review B· Volume 107· Issue 24

Abstract

Iron oxide (Fe${}x$O) serves as a model constituent of Earth-like planetary interiors, reflecting the distinctive high-pressure chemistry of their cores and rocky mantles. Under pressure it undergoes crystal structural transitions and metallization, accompanied by a local-moment collapse of Fe ions. Here, the experiments and theoretical calculations characterize the complex interplay between electron states and structural phases, resulting in a rich phase diagram and revealing the existence of a metallic high-spin state of iron at the conditions near those of Earth's core-mantle boundary.
Source: openalex_inverted_index · Quality: baseline

Research context

OpenAlex topics: High-pressure geophysics and materials · Geomagnetism and Paleomagnetism Studies · Magnetic Properties of Alloys

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Center for Advanced Radiation Sources, University of Chicago, 5640 South Ellis Avenue, Chicago, Illinois 60637, USA

Physics Division, Physical and Life Sciences Directorate, Lawrence Livermore National Laboratory, Livermore, California 94551, USA

Geophysical Laboratory, Carnegie Institution of Washington, Washington, DC 20015, USA

Department of Physics, University of Science and Technology of China, Hefei, Anhui 230026, China

Raymond and Beverly Sackler School of Physics and Astronomy, Tel-Aviv University, Tel Aviv 69978, Israel

Departments of Earth and Planetary Science and Astronomy, and Miller Institute for Basic Research in Science, University of California, Berkeley, California 94720, USA

Center for High Pressure Science and Technology Advanced Research, Shanghai 201203, China

M.N. Miheev Institute of Metal Physics, Russian Academy of Sciences, 620108 Yekaterinburg, Russia

Institute of Physics and Technology, Ural Federal University, 620002 Yekaterinburg, Russia

Skolkovo Institute of Science and Technology, 143026 Moscow, Russia

Funding

Argonne National Laboratory · National Science Foundation · U.S. Department of Energy · Office of Science · Israel Science Foundation · Russian Science Foundation

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