ISIS Neutron and Muon Source Data Journal

Muon Spin Relaxation Study of Spin Dynamics and Magnetic Phase Transition in CeRh2Ga2

Abstract: CeRh2Ga2, which crystallizes in a CaBe2Ge2-type (space group P4/nmm) tetragonal structure at room temperature, is found to exhibit Kondo lattice heavy fermion behaviour with a possible Weyl-Kondo semimetal phase at low temperature. Both, electrical resistivity and heat capacity show an anomaly near 255 K likely related to a structural transition. The heat capacity exhibits an upturn below 6 K and peaks near 0.8 K very likely associated with a long-range magnetic ordering. A peak is also seen near 0.75 K in the ac magnetic susceptibility. Further investigations using the muon spin relaxation measurements down to mK temperature are highly desired to understand the low temperature magnetic phase transition and effect of Rh-site disorder on the spin dynamics in this compound. We propose to carry out µSR measurements using the EMU spectrometer on CeRh2Ga2 which will provide valuable information about the spin dynamics in this compound.

Principal Investigator: Dr Devashi Adroja
Local Contact: Dr Alex Louat
Experimenter: Dr Daniel Mayoh
Local Contact: Dr Rhea Stewart
Experimenter: Professor Andre Strydom
Experimenter: Dr Vivek Kumar Anand
Experimenter: Dr Koji Yokoyama

DOI: 10.5286/ISIS.E.RB2510678

ISIS Experiment Number: RB2510678

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 Devashi Adroja et al; (2025): Muon Spin Relaxation Study of Spin Dynamics and Magnetic Phase Transition in CeRh2Ga2, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB2510678

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