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Inelastic neutron scattering study of magnetic excitations of 2D layered honeycomb compounds Pr2Pt6Al15 and Nd2Pt6Ga15
Abstract: The rare earth intermetallic compounds are well known for their diverse magnetic properties and electronic ground states which are determined by to the competing Kondo, RKKY, crystal electric field and spin-orbit interactions. Ternary intermetallic compounds Pr2Pt6Al15 and Nd2Pt6Ga15, having a monoclinic superstructure, present interesting magnetic properties. The structure consists of a honeycomb like arrangement formed by the Pr1/Nd1 and Pr2/Nd2 atoms and at centre Al3/Ga3-triangles. The magnetic measurements on both the compounds reveal occurrence of long range magnetic ordering of complex nature below 13 K in Pr2Pt6Al15 and below 11 K in Nd2Pt6Ga15. Moreover, the ?(T) data show irreversibility between the ZFC and FC data, and in ordered state, the M(H) isotherms show metamagnetic behaviour with hysteresis which depicts the interplay of antiferromagnetic and ferromagnetic correlations. Further investigations using the inelastic neutron scattering experiment are highly desired to understand the magnetic ground state and determine the crystal field states of these compounds. We propose to carry inelastic neutron scattering measurements on Pr2Pt6Al15 and Nd2Pt6Ga15 using MERLIN spectrometer to determine the crystal field level scheme and investigate spin wave excitations.
Experimenter: Dr Uthayakumar Sivaperumal
Experimenter: Dr Vivek Kumar Anand
Local Contact: Dr Devashi Adroja
Experimenter: Dr RAJESH TRIPATHI
Experimenter: Dr Abhisek Bandyopadhyay
DOI: 10.5286/ISIS.E.RB2520010
ISIS Experiment Number: RB2520010
Part DOI | Instrument | Public release date | Download Link |
---|---|---|---|
10.5286/ISIS.E.RB2520010-1 | MARI | 09 October 2028 | Download |
Publisher: STFC ISIS Neutron and Muon Source
Data format: RAW/Nexus
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Data Citation
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Dr Uthayakumar Sivaperumal et al; (2025): Inelastic neutron scattering study of magnetic excitations of 2D layered honeycomb compounds Pr2Pt6Al15 and Nd2Pt6Ga15, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB2520010
Data is released under the CC-BY-4.0 license.