Spin dynamics of quantum spin liquid state in CaCu3(OH)6Cl2・0.6H2O

DOI

Recently we have succeeded in synthesizing a new kagome material, CaCu3(OH)6Cl2 0.6H2O. Single crystal X-ray measurements revealed that no site disorder between Ca and Cu sites and Cu ions form an “almost perfect” kagome lattice; nearest-neighbor bond length difference is only 0.02%. Both susceptibility and heat capacity measurements on CaCu3(OH)6Cl2 0.6H2O revealed that long-range magnetic order is absence down to 2 K in spite of a large Currie-Weiss temperature of -60 K. Thus, we believe that CaCu3(OH)6Cl2 0.6H2O is a new candidate for quantum spin liquid in a perfect kagome lattice antiferromagnet such as ZnCu3(OH)6Cl2 and ZnCu3(OH)6SO4. We propose to measure spin dynamics at various temperatures to understand the nature of the spin disordered ground state in CaCu3(OH)6Cl2 0.6H2O.

Identifier
DOI https://doi.org/10.5286/ISIS.E.82355197
Metadata Access https://icatisis.esc.rl.ac.uk/oaipmh/request?verb=GetRecord&metadataPrefix=oai_datacite&identifier=oai:icatisis.esc.rl.ac.uk:inv/82355197
Provenance
Creator Dr Kazuki Iida; Dr Kenji Nakajima; Dr David Voneshen; Dr Hiroyuki Yoshida
Publisher ISIS Neutron and Muon Source
Publication Year 2019
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 2016-09-23T09:00:00Z
Temporal Coverage End 2016-09-27T09:00:00Z