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Persistent URL http://purl.org/net/epubs/work/36667
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Record Id 36667
Title Quantum Magnetism in the Paratacamite Family: Towards an Ideal Kagomé Lattice
Abstract We report muon spin rotation measurements on the S=1/2 (Cu2+) paratacamite ZnxCu4-x(OH)6Cl2 family. Despite a Weiss temperature of ~ -300 K, the x = 1 compound is found to have no transition to a magnetic frozen state down to 50 mK as theoretically expected for the kagome Heisenberg antiferromagnet. We find that the limit between a dynamical and a partly frozen ground state occurs around x = 0.5. For x = 1, we discuss the relevance to a singlet picture.
Keywords Physics , 75.30.-m, 75.40.Cx, 76.75.+i , ISIS 2007
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Language English (EN)
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Journal Article Phys Rev Lett 98 (2007): 077204. 10.1103/PhysRevLett.98.077204 2007