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

DOI

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.

Identifier
DOI https://doi.org/10.5286/ISIS.E.87815142
Metadata Access https://icatisis.esc.rl.ac.uk/oaipmh/request?verb=GetRecord&metadataPrefix=oai_datacite&identifier=oai:icatisis.esc.rl.ac.uk:inv/87815142
Provenance
Creator Dr Hui-Qian Luo; Dr Aidy Hillier; Dr Devashi Adroja; Dr Xiaoyan Ma
Publisher ISIS Neutron and Muon Source
Publication Year 2020
Rights CC-BY Attribution 4.0 International; https://creativecommons.org/licenses/by/4.0/
OpenAccess true
Contact isisdata(at)stfc.ac.uk
Representation
Resource Type Dataset
Discipline Natural Sciences; Physics
Temporal Coverage Begin 2017-09-29T08:30:00Z
Temporal Coverage End 2017-10-02T08:30:00Z