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Article: Phases of the t-J model from variational Monte Carlo studies: Occurrence of time-reversal symmetry breaking

TitlePhases of the t-J model from variational Monte Carlo studies: Occurrence of time-reversal symmetry breaking
Authors
Issue Date1990
PublisherAmerican Physical Society. The Journal's web site is located at http://prb.aps.org/
Citation
Physical Review B, 1990, v. 42 n. 4, p. 2662-2664 How to Cite?
AbstractWe have numerically evaluated the energy of several kinds of wave functions considered to be candidate ground states of the two-dimensional t-J model at various hole densities. We searched a parameter space which includes d-wave and s-wave superconductivity and spin-density-wave ordering as well as the projected Fermi-liquid state. Coexistence of different orderings, such as the s+id state and d-wave spin-density-wave state, were found to be stable states. We find a phase diagram in the density-t/J plane which has coexistence of antiferromagnetism and superconductivity at very low hole concentrations and superconductivity up to rather high values of density about 40%. At intermediate concentrations, the time-reversal symmetry-breaking s+id state is found. © 1990 The American Physical Society.
Persistent Identifierhttp://hdl.handle.net/10722/174626
ISSN
2001 Impact Factor: 3.07
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorChen, GJen_US
dc.contributor.authorJoynt, Ren_US
dc.contributor.authorZhang, FCen_US
dc.contributor.authorGros, Cen_US
dc.date.accessioned2012-11-26T08:46:35Z-
dc.date.available2012-11-26T08:46:35Z-
dc.date.issued1990en_US
dc.identifier.citationPhysical Review B, 1990, v. 42 n. 4, p. 2662-2664en_US
dc.identifier.issn0163-1829en_US
dc.identifier.urihttp://hdl.handle.net/10722/174626-
dc.description.abstractWe have numerically evaluated the energy of several kinds of wave functions considered to be candidate ground states of the two-dimensional t-J model at various hole densities. We searched a parameter space which includes d-wave and s-wave superconductivity and spin-density-wave ordering as well as the projected Fermi-liquid state. Coexistence of different orderings, such as the s+id state and d-wave spin-density-wave state, were found to be stable states. We find a phase diagram in the density-t/J plane which has coexistence of antiferromagnetism and superconductivity at very low hole concentrations and superconductivity up to rather high values of density about 40%. At intermediate concentrations, the time-reversal symmetry-breaking s+id state is found. © 1990 The American Physical Society.en_US
dc.languageengen_US
dc.publisherAmerican Physical Society. The Journal's web site is located at http://prb.aps.org/en_US
dc.relation.ispartofPhysical Review Ben_US
dc.titlePhases of the t-J model from variational Monte Carlo studies: Occurrence of time-reversal symmetry breakingen_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.doi10.1103/PhysRevB.42.2662en_US
dc.identifier.scopuseid_2-s2.0-0000957836en_US
dc.identifier.volume42en_US
dc.identifier.issue4en_US
dc.identifier.spage2662en_US
dc.identifier.epage2664en_US
dc.identifier.isiWOS:A1990DT06400120-
dc.publisher.placeUnited Statesen_US
dc.identifier.scopusauthoridChen, GJ=23021200200en_US
dc.identifier.scopusauthoridJoynt, R=7005981135en_US
dc.identifier.scopusauthoridZhang, FC=14012468800en_US
dc.identifier.scopusauthoridGros, C=7102388579en_US

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