Spin dynamics in the $S=1/2$ weakly-coupled chains antiferromagnet BaCu$_2$Si$_2$O$_7$

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dc.creatorZheludev, A.
dc.creatorKenzelmann, M.
dc.creatorRaymond, S.
dc.creatorMasuda, T.
dc.creatorUchinokura, K.
dc.creatorLee, S. -H.
dc.date2001-05-10
dc.date.accessioned2026-07-07T02:41:22Z
dc.date.available2026-07-07T02:41:22Z
dc.descriptionInelastic neutron scattering is used to identify single-particle and continuum spin excitations in the quasi-one-dimensional $S=1/2$ antiferromagnet \ba. In the data analysis, close attention is given to resolution effects. A gap in the continuum spectrum at $Δ_c=4.74.8$ meV is directly observed. The gap energy is in excellent agreement with existing theoretical predictions. Below the gap, the spectrum is dominated by sharp accoustic spin wave excitations.
dc.description9 pages 8 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0105223
dc.identifierhttp://arxiv.org/abs/cond-mat/0105223
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/17720
dc.subjectStrongly Correlated Electrons
dc.titleSpin dynamics in the $S=1/2$ weakly-coupled chains antiferromagnet BaCu$_2$Si$_2$O$_7$
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