High-efficiency X-ray emission spectroscopy of cold-compressed Fe2O3and laser-heated pressurized FeCO3using a von Hámos spectrometer

Author:

Albers Christian1ORCID,Sakrowski Robin1ORCID,Thiering Nicola1ORCID,Libon Lélia2ORCID,Spiekermann Georg3ORCID,Kaa Johannes M.14ORCID,Gretarsson Hlynur56,Sundermann Martin56ORCID,Tolan Metin7,Wilke Max2ORCID,Sternemann Christian1ORCID

Affiliation:

1. Fakultät Physik/DELTA, Technische Universität Dortmund, 44227 Dortmund, Germany

2. Institut für Geowissenschaften, Universität Potsdam, 14476 Potsdam, Potsdam, Germany

3. Institut für Geochemie und Petrologie, ETH Zürich, 8092 Zürich, Switzerland

4. European X-Ray Free-Electron Laser Facility GmbH, 22869 Schenefeld, Germany

5. Max Planck Institute for Chemical Physics of Solids, 01187 Dresden, Germany

6. PETRA III, Deutsches Elektronen-Synchrotron (DESY), 22607 Hamburg, Germany

7. Universität Göttingen, 37073 Göttingen, Germany

Abstract

Fast and efficient (resonant) X-ray emission spectroscopy setup for the electronic structure at lower mantle conditions: high spin in laser-heated FeCO3and a two-step spin transition in pressurized Fe2O3with increasing valence to core intensity.

Funder

Deutsche Forschungsgemeinschaft

Publisher

Royal Society of Chemistry (RSC)

Subject

Spectroscopy,Analytical Chemistry

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