Spinons in the strongly correlated copper oxide chains in SrCuO2

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dc.contributor.author Broholm, C.
dc.contributor.author Perring, T.G.
dc.contributor.author Takagi, H.
dc.contributor.author Frost, C.D.
dc.contributor.author Zaliznyak, L.A.
dc.contributor.author Woo, H.
dc.date.accessioned 2010-01-07T20:27:25Z
dc.date.available 2010-01-07T20:27:25Z
dc.date.issued 2004-08-20
dc.identifier.citation Physical Review Letters 20 Aug. 2004, vol.93, no.8, pp. 087202/1-4 en
dc.identifier.uri http://jhir.library.jhu.edu/handle/1774.2/33754
dc.description.abstract We 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
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dc.language.iso en_US en
dc.publisher American Physical Society en
dc.subject strongly correlated copper oxide chains en
dc.subject exchange constant en
dc.subject strongly correlated electron systems; en
dc.subject Heisenberg model en
dc.subject strontium compounds en
dc.subject spinons en
dc.subject magnetic excitations en
dc.subject antiferromagnetic materials en
dc.subject SrCuO2 en
dc.subject spin dynamics en
dc.subject antiferromagnetic Heisenberg spin chain en
dc.subject lower boundary en
dc.subject two-spinon continuum en
dc.subject neutron scattering en
dc.subject gapless continuum en
dc.title Spinons in the strongly correlated copper oxide chains in SrCuO2 en
dc.type Article en

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