Transfer-matrix renormalization group study of the spin ladders with cyclic four-spin interactions

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dc.creatorLu, H. T.
dc.creatorSun, L. Q.
dc.creatorQin, Shaojin
dc.creatorWang, Y. J.
dc.date2007-01-11
dc.date.accessioned2026-07-07T07:39:57Z
dc.date.available2026-07-07T07:39:57Z
dc.descriptionThe temperature dependence of the specific heat and spin susceptibility of the spin ladders with cyclic four-spin interactions in the rung-singlet phase is explored by making use of the transfer-matrix renormalization group method. The values of spin gap are extracted from the specific heat and susceptibility, respectively. It is found that for different relative strength between interchain and intrachain interactions, the spin gap is approximately linear with the cyclic four-spin interaction in the region far away from the critical point. Furthermore, we show that the dispersion for the one-triplet magnon branch can be obtained by numerically fitting on the partition function.
dc.description7 pages, 7 figures, 1 table
dc.identifierhttps://arxiv.org/abs/cond-mat/0701243
dc.identifierhttp://arxiv.org/abs/cond-mat/0701243
dc.identifierPhys. Rev. B 74, 224447 (2006)
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/121646
dc.subjectStrongly Correlated Electrons
dc.titleTransfer-matrix renormalization group study of the spin ladders with cyclic four-spin interactions
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