ISIS Neutron and Muon Source Data Journal

Structural, orbital and magnetic orders in the alpha- and beta-phases of S = ½ KTi(C2O4)2·2H2O - a neutron diffraction study

Abstract: The study of quantum spin systems is at the forefront of condensed matter research due to the fascinating behaviour they can display. An interesting source for quantum S = 1/2 moments in magnetic materials is the 3d1 Ti3+ ion. The magnetic response of Ti3+-based materials strongly depends on various competing energy scales of crystal field states, spin-orbit coupling and magnetic exchange. Often, this competition can give rise to exotic magnetic ground states. Here, we propose to perform a high-resolution structural study of two polymorphs of KTi(C2O4)2·2H2O, which contain two different magnetic sublattices of Ti3+ S = 1/2 moments, each with different point symmetries at the Ti3+ ion sites. The determined structures will form a crucial foundation for our understanding of the crystal fields in each of the phases, and hence the origin of their markedly different magnetic behaviour.

Principal Investigator: Dr Lucy Clark
Experimenter: Professor Philip Lightfoot
Experimenter: Dr Duc Le
Local Contact: Dr Alexandra Gibbs
Experimenter: Miss Katherine Tustain
Experimenter: Mr Teng Li
Experimenter: Dr Gøran Nilsen
Experimenter: Dr Jennifer Graham
Experimenter: Mr Lewis Farrar
Experimenter: Mr Richard Lyons

DOI: 10.5286/ISIS.E.RB1810582

ISIS Experiment Number: RB1810582

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 Lucy Clark et al; (2018): Structural, orbital and magnetic orders in the alpha- and beta-phases of S = ½ KTi(C2O4)2·2H2O - a neutron diffraction study, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1810582

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