ISIS Neutron and Muon Source Data Journal

Determination of the crystal electric field scheme in geometrically frustrated lanthanide garnets

Abstract: The magnetic ground state in geometrically frustrated lanthanide oxides is determined by the interplay between different magnetic interactions and crystal electric field (CEF) effects. We have recently the effect of chemical pressure on the magnetic properties of the frustrated lanthanide garnets, Ln3A2X3O12, by varying the non-magnetic cations A and X. Magnetic ordering features are observed for all garnets with Ln = Tb, Dy, Ho; however the nature of ordering varies for different Ln as well as for different combinations of A and X. The magnitude of exchange and dipolar interactions are found to be similar for all the garnets. Therefore it is postulated that the variations in magnetic ordering are caused by subtle differences in the CEF. We propose inelastic neutron scattering experiments on MERLIN to precisely determine the CEF levels for garnets with Ln = Tb, Dy, Ho.

Principal Investigator: Professor Sian Dutton
Experimenter: Miss Paromita Mukherjee
Local Contact: Dr Helen Walker

DOI: 10.5286/ISIS.E.RB1810745

ISIS Experiment Number: RB1810745

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:
Professor Sian Dutton et al; (2018): Determination of the crystal electric field scheme in geometrically frustrated lanthanide garnets, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1810745

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