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

Borisov, A.S.; Abdulina, V.R.; Siidra, O.I.; Ginga, V.A.; Tsirlin, A.A.; Holzheid, A.; Zapfe, A.; Skourski, Y.; Setzer, A.

doi:10.1107/S1600576725002572

Journal of Applied Crystallography Journal of Applied
Crystallography

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Figure 6
(a) Temperature-dependent magnetic susceptibility of römerite measured in applied fields of 0.01, 0.1, 1 and 5 T. The data shown in pale gray were collected after heating the sample up to 400 K and demonstrate the effect of amorphization. (Inset) Inverse magnetic susceptibility of römerite in an applied field of 1 T. The red line shows the Curie−Weiss fit. (b) Field-dependent magnetization of römerite measured at 1.7 K in pulsed fields up to 60 T. The small hysteresis may be caused by sample heating during the pulse. The dashed black line is the extrapolation to zero field, which yields a saturation moment of M_s ≃ 13.7 μ_B per f.u. at 1.7 K. (Inset) Field-dependent magnetization of römerite at 2 and 100 K measured in a static field.

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APPLIED
CRYSTALLOGRAPHY

ISSN: 1600-5767

Volume 58| Part 3| June 2025|

https://doi.org/10.1107/S1600576725002572

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