Spin structure factors and valence-bond-solid states of the trimerized Heisenberg chains in a magnetic field

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dc.creatorGong, Shou-Shu
dc.creatorGu, Bo
dc.creatorSu, Gang
dc.date2008-03-08
dc.date.accessioned2026-07-07T09:25:50Z
dc.date.available2026-07-07T09:25:50Z
dc.descriptionBy means of the density matrix renormalization group (DMRG) method, the static spin structure factors and the magnetization plateaus of the trimerized Heisenberg ferromagnet-ferromagnet-antiferromagnet and antiferromagnet-antiferromagnet-ferromagnet spin chains in the presence of a magnetic field are elaborately studied. It is found that in the plateau states, the static structure factor with three peaks does not vary with the external magnetic field as well as the exchange couplings; the spin correlation function behaves as a perfect sequence and has a simple relation with the magnetization per site. An approximate wave function for the plateau states is proposed, and a picture based on the valence-bond-solid states is presented in order to understand the origin and the total number of the magnetization plateaus, which are shown to be in agreement with the DMRG results.
dc.description11 pages, 3 figures
dc.identifierhttps://arxiv.org/abs/0803.1238
dc.identifierhttp://arxiv.org/abs/0803.1238
dc.identifierPhys. Lett. A372, 2322 (2008)
dc.identifierdoi:10.1016/j.physleta.2007.11.043
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/156543
dc.subjectStrongly Correlated Electrons
dc.titleSpin structure factors and valence-bond-solid states of the trimerized Heisenberg chains in a magnetic field
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