Regensburg 2019 – wissenschaftliches Programm
Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe
MM: Fachverband Metall- und Materialphysik
MM 20: Poster session II
MM 20.9: Poster
Dienstag, 2. April 2019, 18:30–20:00, Poster C
Formation and electronic structure of tetracarbonates under extreme conditions — •Christian Albers1, Georg Spiekermann2, Robin Sakrowski1, Christian Sternemann1, Max Wilke2, and Metin Tolan1 — 1Fakultät Physik/DELTA, TU Dortmund — 2Institut für Erd- und Umweltwissenschaften, Universität Potsdam
Iron-bearing carbonates are candidates for carbon storage in the deep Earth, therefore their physical properties and chemistry at high pressure and high temperature are in focus of recent research [1].
We present a setup to establish the conditions in the lower mantle (100 GPa, 3000 K). The required pressure is accomplished by diamond anvil cells [2], in which the sample is heated double-sided by a Nd:YAG-Laser. Via combined X-ray emission and X-ray Raman spectroscopy [3] the electronic structure of the synthesized compounds at high pressure and temperature can be analyzed. Furthermore, optical Raman scattering provides information about the geometric structure. The case of siderite and magnesiosiderite will be discussed.
V. Cerantola et al., Nat. Comm. 8, 15960 (2017)
S. Petigirard et al., J. Synchrotron Rad. 24, 276-282 (2017).
C. Weis et al., Scientific Reports 7, 16526 (2017)