ISIS Neutron and Muon Source Data Journal

Fractionalized Spin Excitation in the B-site mixed Ce2ScNbO7 Pyrochlore

Abstract: A quantum spin liquid (QSL) is a state of matter where unpaired electrons? spins, although entangled, do not show magnetic order even at zero temperature. A continuum of fractionalized excitations from the inelastic neutron scattering (INS) experiments is the hallmark of a QSL at a very low temperature. The ground state of earlier QSL candidates like ZnCu3(OD)6Cl2 and YbMgGaO4 has been complicated by the presence of disorder. Ce2Zr2O7 is a rare example of a QSL candidate that is free of disorder, examined by all sorts of measurements, and the (INS) experiments found a continuum of fractionalized excitations. We made a new compound Ce2ScNbO7, which has the same structure but random distribution of Sc3+ and Nb5+ on the B-site. We propose to perform INS to figure out whether the fractionalized spinon excitations are robust against the B-site disorder in Ce2ScNbO7.

Principal Investigator: Professor Pengcheng Dai
Local Contact: Dr Ross Stewart
Experimenter: Miss Kelly Neubauer
Experimenter: Dr Bin Gao

DOI: 10.5286/ISIS.E.RB2220314

ISIS Experiment Number: RB2220314

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 Pengcheng Dai et al; (2023): Fractionalized Spin Excitation in the B-site mixed Ce2ScNbO7 Pyrochlore, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB2220314

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