Helimagnetism in a disordered and geometrically frustrated quantum spin chain

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dc.creatorMasuda, T.
dc.creatorZheludev, A.
dc.creatorBush, A.
dc.creatorMarkina, M.
dc.creatorVasiliev, A.
dc.date2003-10-06
dc.date.accessioned2026-07-07T02:54:00Z
dc.date.available2026-07-07T02:54:00Z
dc.descriptionNeutron diffraction and bulk measurements are used to determine the nature of the low-temperature ordered state in LiCu$_2$O$_2$, a $S=1/2$ spin-chain compound with competing interactions. The magnetic structure is found to be helimagnetic, with a propagation vector $(0.5,ζ,0)$, $ζ=0.174$. The nearest-neighbor exchange constant and frustration ratio are estimated to be $J=5.8$ meV and $J_2/J_1=0.29$, respectively. For idealized spin chains these parameter values would signify a gapped spin-liquid ground state. Long-range ordering is attributed to intrinsic non-stoichiometry.
dc.description4 pages 4 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0310126
dc.identifierhttp://arxiv.org/abs/cond-mat/0310126
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/22378
dc.subjectStrongly Correlated Electrons
dc.titleHelimagnetism in a disordered and geometrically frustrated quantum spin chain
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