Spin Dynamics of the Spin-1/2 Kagome Lattice Antiferromagnet ZnCu_3(OH)_6Cl_2

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dc.creatorHelton, J. S.
dc.creatorMatan, K.
dc.creatorShores, M. P.
dc.creatorNytko, E. A.
dc.creatorBartlett, B. M.
dc.creatorYoshida, Y.
dc.creatorTakano, Y.
dc.creatorSuslov, A.
dc.creatorQiu, Y.
dc.creatorChung, J. -H.
dc.creatorNocera, D. G.
dc.creatorLee, Y. S.
dc.date2006-10-19
dc.date2007-04-02
dc.date.accessioned2026-07-07T07:54:41Z
dc.date.available2026-07-07T07:54:41Z
dc.descriptionWe have performed thermodynamic and neutron scattering measurements on the S=1/2 kagome lattice antiferromagnet Zn Cu_3 (OH)_6 Cl_2. The susceptibility indicates a Curie-Weiss temperature of ~ -300 K; however, no magnetic order is observed down to 50 mK. Inelastic neutron scattering reveals a spectrum of low energy spin excitations with no observable gap down to 0.1 meV. The specific heat at low-T follows a power law with exponent less than or equal to 1. These results suggest that an unusual spin-liquid state with essentially gapless excitations is realized in this kagome lattice system.
dc.description4 pages, 3 figures; v2: Updates to authors list and references; v3: Updated version; v4: Published version
dc.identifierhttps://arxiv.org/abs/cond-mat/0610539
dc.identifierhttp://arxiv.org/abs/cond-mat/0610539
dc.identifierPhysical Review Letters 98, 107204 (2007)
dc.identifierdoi:10.1103/PhysRevLett.98.107204
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/126706
dc.subjectStrongly Correlated Electrons
dc.titleSpin Dynamics of the Spin-1/2 Kagome Lattice Antiferromagnet ZnCu_3(OH)_6Cl_2
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