Soliton binding and low-lying singlets in frustrated odd-legged S=1/2 spin tubes

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dc.creatorLuscher, Andreas
dc.creatorNoack, Reinhard M.
dc.creatorMisguich, Gregoire
dc.creatorKotov, Valeri N.
dc.creatorMila, Frederic
dc.date2004-05-07
dc.date.accessioned2026-07-07T07:41:36Z
dc.date.available2026-07-07T07:41:36Z
dc.descriptionMotivated by the intriguing properties of the vanadium spin tube Na2V3O7, we show that an effective spin-chirality model similar to that of standard Heisenberg odd-legged S=1/2 spin tubes can be derived for frustrated inter-ring couplings, but with a spin-chirality coupling constant alpha that can be arbitrarily small. Using density matrix renormalization group and analytical arguments, we show that, while spontaneous dimerization is always present, solitons become bound into low-lying singlets as alpha is reduced. Experimental implications for strongly frustrated tubes are discussed.
dc.description4 pages, 4 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0405131
dc.identifierhttp://arxiv.org/abs/cond-mat/0405131
dc.identifierPhys. Rev. B 70, 060405 (2004)
dc.identifierdoi:10.1103/PhysRevB.70.060405
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/122169
dc.subjectStrongly Correlated Electrons
dc.titleSoliton binding and low-lying singlets in frustrated odd-legged S=1/2 spin tubes
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