ISIS Neutron and Muon Source Data Journal

Local structure study of Cr-Fe alloys with enhanced magnetovolume effect

Abstract: Negative thermal expansion (NTE) materials, the volume of a material abnormally contract with the increase of temperature, is closed related to the magnetovolume effect in magnetic materials. However, due to the limited knowledge of the mechanism for magnetovolume effect, the progress of searching for new NTE materials with excellent performance is quite slow. Here, we found enhanced magnetovolume effect and abnormal thermal expansion in cubic Cr with little Fe substitutions for Cr. Due to the simple crystal structure and binary composition, Cr-Fe alloys is a favorable example to investigate the mechanism of abnormal thermal expansion and magnetovolume effect for many other metallic materials. In this study, we intend to determine local structure for Cr-Fe alloy by nPDF SANS, which could give new insight into the mechanism of magnetovolume effect in magneitc materials.

Principal Investigator: Dr KUN LIN
Experimenter: Dr Jing Sun
Experimenter: Dr Chengyi Yu
Local Contact: Dr Tom Headen
Experimenter: Dr Yili Cao
Experimenter: Professor Xianran Xing

DOI: 10.5286/ISIS.E.RB1820109

ISIS Experiment Number: RB1820109

Publisher: STFC ISIS Neutron and Muon Source

Data format: RAW/Nexus
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Data Citation

The recommended format for citing this dataset in a research publication is as:
[author], [date], [title], [publisher], [doi]

For Example:
Dr KUN LIN et al; (2018): Local structure study of Cr-Fe alloys with enhanced magnetovolume effect, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1820109

Data is released under the CC-BY-4.0 license.