ISIS Neutron and Muon Source Data Journal

Investigation of Crystal Field Excitations in the 2D geometrically frustrated Quantum Spin Liquid Candidate: KBaTm(BO3)2

Abstract: One of the foremost challenges in condensed matter physics is the experimental realization of a quantum spin liquid (QSL) state, as they host emergent collective excitations that transcend our knowledge of quantum matter. Recent work suggests that the synergic interplay between strong spin-orbit coupling and crystal electric field in 4f rare-earth frustrated triangular lattice antiferromagnets (TLAFMs) (where, Kramers ions typically implies Jeff=1/2, at low T) can lead to the QSL state. The bulk magnetization study of KBaTm(BO3)2 revealed AFM interactions between spins without any signs of long-range magnetic ordering down to 1.8 K, highlighting their potential as QSL systems. Our objectives are to investigation crystal-field excitations and identify single ion anisotropy, which will help to understand the origin of QSL. We will also get information on magnetic frustration through the presence of magnetic diffuse scattering. The outcomes of this study will directly test a central hypothesis in modern quantum magnetism. To achieve this, we proposed inelastic neutron scattering measurements on MERLIN or MARI.

Local Contact: Dr Devashi Adroja
Experimenter: Dr BIKASH SAHA

DOI: 10.5286/ISIS.E.RB2620091

ISIS Experiment Number: RB2620091

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; (2026): Investigation of Crystal Field Excitations in the 2D geometrically frustrated Quantum Spin Liquid Candidate: KBaTm(BO3)2, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB2620091

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