ISIS Neutron and Muon Source Data Journal

MUSR investigations of the spin-liquid ground sate in the new kagome lattice Cu3Zn(OH)6FBr

Abstract: Unveiling quantum effects in materials at low temperatures, such as quantum spin-liquid behavior, have been a central task in condensed matter physics. A two-dimensional kagome antiferromagnet can achieve a spin-liquid ground state due to strong quantum fluctuations and geometrical frustrations, but the topological nature of its ground state and low-energy spin fluctuationsare still controversial. Recently, we have successfully synthesized polycrystalline of Cu3Zn(OH)6FBr with the barlowite type crystal structure. Our specific heat measurements show that there is no phase transition down to 50 mK in Cu3Zn(OH)6FBr and hence provides a unique opportunity to investigate spin-liquid ground state in this compound down to 50 mK using muon spin rotation and relaxation measurements. We would also measure Cu4(OH)6FBr, which exhibits an antiferromagnetic ordering at 15 K for a comparison.

Principal Investigator: Dr Devashi Adroja
Experimenter: Dr Hui-Qian Luo
Experimenter: Dr Adrian Hillier
Experimenter: Dr Xiaoyan Ma

DOI: 10.5286/ISIS.E.RB1720482

ISIS Experiment Number: RB1720482

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; (2017): MUSR investigations of the spin-liquid ground sate in the new kagome lattice Cu3Zn(OH)6FBr, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1720482

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