ISIS Neutron and Muon Source Data Journal

In-situ study of mechanism for magnetovolume effect in Cr-Fe alloys

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 (MVE) in magnetic materials. However, due to the limited knowledge of the mechanism for MVE, the progress of searching for new NTE metallic materials with excellent performance is quite slow. Here, we found enhanced MVE 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 MVE and NTE for many other metallic materials. In this study, we intend to determine the detailed magnetic and crystal structure for Cr-Fe alloy by long-wave length in-situ neutron powder diffraction experiments, which could help to give new insight into the mechanism of MVE in metallic materials.

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

DOI: 10.5286/ISIS.E.RB1820084

ISIS Experiment Number: RB1820084

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): In-situ study of mechanism for magnetovolume effect in Cr-Fe alloys, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1820084

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