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Methods of Ex Situ and In Situ Investigations of Structural Transformations: The Case of Crystallization of Metallic Glasses
Published on: June 7, 2018
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Crystal and Magnetic Structures of Monoclinic FeOHSO4
Maxim Avdeev1,2, Shashwat Singh3, Prabeer Barpanda3
1Australian Nuclear Science and Technology Organisation, Lucas Heights, New South Wales 2234, Australia.
Inorganic Chemistry
|October 1, 2021
Summary
This study investigated the monoclinic iron hydroxysulfate (FeOHSO4) using neutron powder diffraction. Researchers determined its crystal structure, magnetic ordering below 125 K, and confirmed it is isostructural to FeSO4F.
Area of Science:
- Solid State Chemistry
- Materials Science
- Crystallography
Background:
- Iron hydroxysulfate (FeOHSO4) is a compound with potential applications in materials science.
- Understanding its structural and magnetic properties is crucial for predicting its behavior and potential uses.
Purpose of the Study:
- To investigate the crystal and magnetic structures of monoclinic FeOHSO4.
- To determine the magnetic ordering and Néel temperature (TN).
- To compare the structure of FeOHSO4 with related compounds.
Main Methods:
- Neutron powder diffraction was employed to elucidate the crystal and magnetic structures.
- Magnetometry was used to characterize magnetic properties.
- Ab initio calculations were performed for proton position prediction.
Main Results:
- The monoclinic crystal structure of FeOHSO4 with space group C2/c was confirmed.
- A collinear antiferromagnetic structure (k(0,0,0)) was identified below the Néel temperature (TN ~ 125 K).
- The magnetic moments were found to align along the b axis, within the magnetic space group C2'/c'.
Conclusions:
- FeOHSO4 exhibits a well-defined crystal and magnetic structure.
- The compound is isostructural to FeSO4F, indicating similar structural motifs and magnetic ordering.
- The findings provide valuable insights into the structure-property relationships of iron hydroxysulfates.
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