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Article: Nature of stripes in the generalized t-J model applied to the cuprate superconductors

TitleNature of stripes in the generalized t-J model applied to the cuprate superconductors
Authors
Issue Date2009
PublisherInstitute of Physics Publishing Ltd. The Journal's web site is located at http://www.iop.org/EJ/journal/NJP
Citation
New Journal Of Physics, 2009, v. 11 How to Cite?
AbstractA recent study of the transport properties on the stripe phase in La 1.875Ba 01.25CuO 4 by Li et al (2007 Phys. Rev. Lett. 99 067001) found twodimensional (2D) superconductivity over a wide temperature range including a Berezinski-Kosterlitz-Thouless transition at a temperature T = 16 K, with 3D superconducting (SC) ordering only at T = 4 K. These results contradict the long standing belief that the onset of superconductivity is suppressed by stripe ordering and suggest coexistence of stripe and SC phases. The lack of 3D SC order above T = 4 K requires an antiphase ordering in the SC state to suppress the interlayer Josephson coupling as proposed by Berg et al (2007 Phys. Rev. Lett. 99 127003). Here, we use a renormalized mean field theory for a generalized t-J model to examine in detail the energetics of the spin and charge stripe ordered SC states including possible antiphase domains in the SC order. We find that the energies of these modulated states are very close to each other and that the anisotropy present in the low temperature tetragonal crystal structure favors stripe resonating valence bond states. The stripe antiphase SC states are found to have energies very close to, but always above, the ground state energy, which suggests additional physical effects are responsible for their stability. © IOP Publishing Ltd and Deutsche Physikalische Gesellschaft.
Persistent Identifierhttp://hdl.handle.net/10722/59563
ISSN
2015 Impact Factor: 3.57
2015 SCImago Journal Rankings: 1.902
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorYang, KYen_HK
dc.contributor.authorChen, WQen_HK
dc.contributor.authorRice, TMen_HK
dc.contributor.authorSigrist, Men_HK
dc.contributor.authorZhang, FCen_HK
dc.date.accessioned2010-05-31T03:52:51Z-
dc.date.available2010-05-31T03:52:51Z-
dc.date.issued2009en_HK
dc.identifier.citationNew Journal Of Physics, 2009, v. 11en_HK
dc.identifier.issn1367-2630en_HK
dc.identifier.urihttp://hdl.handle.net/10722/59563-
dc.description.abstractA recent study of the transport properties on the stripe phase in La 1.875Ba 01.25CuO 4 by Li et al (2007 Phys. Rev. Lett. 99 067001) found twodimensional (2D) superconductivity over a wide temperature range including a Berezinski-Kosterlitz-Thouless transition at a temperature T = 16 K, with 3D superconducting (SC) ordering only at T = 4 K. These results contradict the long standing belief that the onset of superconductivity is suppressed by stripe ordering and suggest coexistence of stripe and SC phases. The lack of 3D SC order above T = 4 K requires an antiphase ordering in the SC state to suppress the interlayer Josephson coupling as proposed by Berg et al (2007 Phys. Rev. Lett. 99 127003). Here, we use a renormalized mean field theory for a generalized t-J model to examine in detail the energetics of the spin and charge stripe ordered SC states including possible antiphase domains in the SC order. We find that the energies of these modulated states are very close to each other and that the anisotropy present in the low temperature tetragonal crystal structure favors stripe resonating valence bond states. The stripe antiphase SC states are found to have energies very close to, but always above, the ground state energy, which suggests additional physical effects are responsible for their stability. © IOP Publishing Ltd and Deutsche Physikalische Gesellschaft.en_HK
dc.languageengen_HK
dc.publisherInstitute of Physics Publishing Ltd. The Journal's web site is located at http://www.iop.org/EJ/journal/NJPen_HK
dc.relation.ispartofNew Journal of Physicsen_HK
dc.titleNature of stripes in the generalized t-J model applied to the cuprate superconductorsen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1367-2630&volume=11&spage=055053&epage=&date=2009&atitle=Nature+of+stripes+in+the+generalized+t–J+model+applied+to+the+cuprate+superconductorsen_HK
dc.identifier.emailChen, WQ: wqchen@hku.hken_HK
dc.identifier.emailZhang, FC: fuchun@hkucc.hku.hken_HK
dc.identifier.authorityChen, WQ=rp00673en_HK
dc.identifier.authorityZhang, FC=rp00840en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1088/1367-2630/11/5/055053en_HK
dc.identifier.scopuseid_2-s2.0-67649510618en_HK
dc.identifier.hkuros157830en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-67649510618&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume11en_HK
dc.identifier.isiWOS:000266458800001-
dc.publisher.placeUnited Kingdomen_HK
dc.identifier.scopusauthoridYang, KY=7404291063en_HK
dc.identifier.scopusauthoridChen, WQ=36077405600en_HK
dc.identifier.scopusauthoridRice, TM=7201893707en_HK
dc.identifier.scopusauthoridSigrist, M=7102787652en_HK
dc.identifier.scopusauthoridZhang, FC=14012468800en_HK
dc.identifier.citeulike4687067-

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