ISIS Neutron and Muon Source Data Journal

Effect of external pressure on the magnetic structure of Fe-doped MnNiGe alloys

Abstract: Magnetic equiatomic alloys (MEAs) of the general formula MM'X (M, M' = transition metals, X = Si, Ge, Sn) undergo magnetostructural transition of martensitic type on cooling from high temperature. These alloys are identified as new class of shape memory alloy and attracted considerable attention due to their rewarding magneto-functional properties like large magnetocaloric effect, exchange bias effect, magnetoresistance and observation of spin-glass like ground state. Application of pressure often results in a significant change in magnetic behaviours. In this proposal, we would like to perform powder neutron diffraction in presence of external hydrostatic pressure on two Fe-doped MEA of nominal compositions Mn0.85Fe0.15NiGe, and MnNi0.75Fe0.25Ge to unveil the effect of pressure on the magnetic ground state and how it is related to the martensitic type structural transition.

Principal Investigator: Dr Souvik Chatterjee
Experimenter: Dr Jhuma Sannigrahi
Experimenter: Dr Sabyasachi Pramanick
Experimenter: Mr Nilesh Khamaru
Experimenter: Mr Sambhu Charan Das
Experimenter: Dr Devashi Adroja
Experimenter: Dr Dmitry Khalyavin
Experimenter: Dr Prabir Dutta
Experimenter: Professor Subham Majumdar
Experimenter: Mr Jiahao Chen

DOI: 10.5286/ISIS.E.RB1968022

ISIS Experiment Number: RB1968022

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 Souvik Chatterjee et al; (2019): Effect of external pressure on the magnetic structure of Fe-doped MnNiGe alloys, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1968022

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