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Article: Plaquette ground state in the two-dimensional SU(4) spin-orbital model

TitlePlaquette ground state in the two-dimensional SU(4) spin-orbital model
Authors
Keywords11.30.-J Symmetry And Conservation Laws
75.10.Jm Quantized Spin Models
75.40.Mg Numerical Simulation Studies
Issue Date2000
PublisherSpringer Verlag. The Journal's web site is located at http://www.edpsciences.org/journal/index.cfm?edpsname=epjb
Citation
European Physical Journal B, 2000, v. 17 n. 3, p. 367-370 How to Cite?
AbstractIn order to understand the properties of Mott insulators with strong ground state orbital fluctuations, we study the zero temperature properties of the SU(4) spin-orbital model on a square lattice. Exact diagonalizations of finite clusters suggest that the ground state is disordered with a singlet-multiplet gap and possibly low-lying SU(4) singlets in the gap. An interpretation in terms of plaquette SU(4) singlets is proposed. The implications for LiNiO 2 are discussed.
Persistent Identifierhttp://hdl.handle.net/10722/174600
ISSN
2015 Impact Factor: 1.223
2015 SCImago Journal Rankings: 0.524
References

 

DC FieldValueLanguage
dc.contributor.authorVan Den Bossche, Men_US
dc.contributor.authorZhang, FCen_US
dc.contributor.authorMila, Fen_US
dc.date.accessioned2012-11-26T08:46:26Z-
dc.date.available2012-11-26T08:46:26Z-
dc.date.issued2000en_US
dc.identifier.citationEuropean Physical Journal B, 2000, v. 17 n. 3, p. 367-370en_US
dc.identifier.issn1434-6028en_US
dc.identifier.urihttp://hdl.handle.net/10722/174600-
dc.description.abstractIn order to understand the properties of Mott insulators with strong ground state orbital fluctuations, we study the zero temperature properties of the SU(4) spin-orbital model on a square lattice. Exact diagonalizations of finite clusters suggest that the ground state is disordered with a singlet-multiplet gap and possibly low-lying SU(4) singlets in the gap. An interpretation in terms of plaquette SU(4) singlets is proposed. The implications for LiNiO 2 are discussed.en_US
dc.languageengen_US
dc.publisherSpringer Verlag. The Journal's web site is located at http://www.edpsciences.org/journal/index.cfm?edpsname=epjben_US
dc.relation.ispartofEuropean Physical Journal Ben_US
dc.subject11.30.-J Symmetry And Conservation Lawsen_US
dc.subject75.10.Jm Quantized Spin Modelsen_US
dc.subject75.40.Mg Numerical Simulation Studiesen_US
dc.titlePlaquette ground state in the two-dimensional SU(4) spin-orbital modelen_US
dc.typeArticleen_US
dc.identifier.emailZhang, FC: fuchun@hkucc.hku.hken_US
dc.identifier.authorityZhang, FC=rp00840en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.scopuseid_2-s2.0-0000080433en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0000080433&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume17en_US
dc.identifier.issue3en_US
dc.identifier.spage367en_US
dc.identifier.epage370en_US
dc.publisher.placeGermanyen_US
dc.identifier.scopusauthoridVan Den Bossche, M=54888821700en_US
dc.identifier.scopusauthoridZhang, FC=14012468800en_US
dc.identifier.scopusauthoridMila, F=7006122264en_US

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