Integrable anisotropic spin-ladder model

dc.contributor.author	Tonel, Arlei Prestes	pt_BR
dc.contributor.author	Foerster, Angela	pt_BR
dc.contributor.author	Links, Jon	pt_BR
dc.contributor.author	Malvezzi, Andre Luiz	pt_BR
dc.date.accessioned	2014-09-26T02:10:51Z	pt_BR
dc.date.issued	2001	pt_BR
dc.identifier.issn	1098-0121	pt_BR
dc.identifier.uri	http://hdl.handle.net/10183/103847	pt_BR
dc.description.abstract	We present an integrable spin-ladder model, which possesses a free parameter besides the rung coupling J. Wang’s system based on the SU(4) symmetry can be obtained as a special case. The model is exactly solvable by means of the Bethe ansatz method. We determine the dependence on the anisotropy parameter of the phase transition between gapped and gapless spin excitations and present the phase diagram. Finally, we show that the model is a special case of a more general Hamiltonian with three free parameters.	en
dc.format.mimetype	application/pdf	pt_BR
dc.language.iso	eng	pt_BR
dc.relation.ispartof	Physical review. B, Condensed matter and materials physics. Woodbury. Vol. 64, no. 5 (Aug. 2001), 054420 5p.	pt_BR
dc.rights	Open Access	en
dc.subject	Física	pt_BR
dc.title	Integrable anisotropic spin-ladder model	pt_BR
dc.type	Artigo de periódico	pt_BR
dc.identifier.nrb	000300232	pt_BR
dc.type.origin	Estrangeiro	pt_BR

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