Thermal behavior of römerite over a Mars surface relevant temperature range: single-crystal and powder X-ray crystallography and magnetic properties

• Published in: Journal of applied crystallography Vol. 58; no. 3; pp. 822 - 831
• Main Authors: Borisov, Artem S., Abdulina, Veronika R., Siidra, Oleg I., Ginga, Victoria A., Tsirlin, Alexander A., Holzheid, Astrid, Zapfe, Annika, Skourski, Yurii, Setzer, Annette
• Format: Journal Article
• Language: English
• Published: Oxford Blackwell Publishing Ltd 01.06.2025
• Subjects: Amorphization; Calorimetry; Crystallography; Data acquisition; Decomposition; Differential scanning calorimetry; Ferric ions; Hematite; High temperature; Iron oxides; Iron sulfates; Magnetic properties; Magnetite; Mars surface; Minerals; Phase transitions; Powder; Sulfates; Temperature; Tetrahedra; Thermal expansion; Thermodynamic properties; Thermogravimetry; X-ray diffraction

A number of hydrous iron sulfate minerals have been detected on the surface of Mars under extraterrestrial conditions. Nonetheless, certain inquiries regarding the properties and phase evolution of hydrous iron sulfate minerals remain unresolved and subject to debate at present. In our research, the...