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dc.contributor.authorBroholm, C.
dc.contributor.authorPerring, T.G.
dc.contributor.authorTakagi, H.
dc.contributor.authorFrost, C.D.
dc.contributor.authorZaliznyak, L.A.
dc.contributor.authorWoo, H.
dc.date.accessioned2010-01-07T20:27:25Z
dc.date.available2010-01-07T20:27:25Z
dc.date.issued2004-08-20
dc.identifier.citationPhysical Review Letters 20 Aug. 2004, vol.93, no.8, pp. 087202/1-4en
dc.identifier.urihttp://jhir.library.jhu.edu/handle/1774.2/33754
dc.description.abstractWe have investigated the spin dynamics in the strongly correlated chain copper oxide SrCuO2 for energies up to ≥0.6 eV using inelastic neutron scattering. We observe a gapless continuum of magnetic excitations, which is well described by the 'Muller ansatz' for the two-spinon continuum in the S=1/2 antiferromagnetic Heisenberg spin chain. The lower boundary of the continuum extends up to ≈360 meV, which corresponds to an exchange constant J=226(12) meV.en
dc.language.isoen_USen
dc.publisherAmerican Physical Societyen
dc.subjectstrongly correlated copper oxide chainsen
dc.subjectexchange constanten
dc.subjectstrongly correlated electron systems;en
dc.subjectHeisenberg modelen
dc.subjectstrontium compoundsen
dc.subjectspinonsen
dc.subjectmagnetic excitationsen
dc.subjectantiferromagnetic materialsen
dc.subjectSrCuO2en
dc.subjectspin dynamicsen
dc.subjectantiferromagnetic Heisenberg spin chainen
dc.subjectlower boundaryen
dc.subjecttwo-spinon continuumen
dc.subjectneutron scatteringen
dc.subjectgapless continuumen
dc.titleSpinons in the strongly correlated copper oxide chains in SrCuO2en
dc.typeArticleen


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