File Download
  Links for fulltext
     (May Require Subscription)
Supplementary

Article: Variational Monte Carlo studies of gossamer superconductivity

TitleVariational Monte Carlo studies of gossamer superconductivity
Authors
KeywordsPhysics
Issue Date2009
PublisherAmerican Physical Society. The Journal's web site is located at http://prb.aps.org/
Citation
Physical Review B: Condensed Matter and Materials Physics, 2009, v. 79 n. 14 article no. 144526 How to Cite?
AbstractWe use a partially Gutzwiller projected BCS d-wave wave function with an antiferromagnetic-weighting factor to study the ground-state phase diagram of a half-filled Hubbard-Heisenberg model in a square lattice with nearest-neighbor hopping t and a diagonal hopping t'. The calculations are carried out by using variational Monte Carlo method which treats the Gutzwiller projection explicitly. At large on-site Coulomb interaction U, the ground state is antiferromagnetic. As U decreases, the ground state becomes superconducting and eventually metallic. The phase diagram is obtained by extensive calculations. As compared to the strong effect of U/ t, the phase boundaries turn out to be less sensitive to t' / t. The result is consistent with the phase diagram in layered organic conductors and is compared to the earlier mean-field result based on the Gutzwiller approximation.
Persistent Identifierhttp://hdl.handle.net/10722/59627
ISSN
2014 Impact Factor: 3.736
2015 SCImago Journal Rankings: 1.933
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorGuertler, Sen_HK
dc.contributor.authorWang, QHen_HK
dc.contributor.authorZhang, FCen_HK
dc.date.accessioned2010-05-31T03:54:04Z-
dc.date.available2010-05-31T03:54:04Z-
dc.date.issued2009en_HK
dc.identifier.citationPhysical Review B: Condensed Matter and Materials Physics, 2009, v. 79 n. 14 article no. 144526en_HK
dc.identifier.issn1098-0121en_HK
dc.identifier.urihttp://hdl.handle.net/10722/59627-
dc.description.abstractWe use a partially Gutzwiller projected BCS d-wave wave function with an antiferromagnetic-weighting factor to study the ground-state phase diagram of a half-filled Hubbard-Heisenberg model in a square lattice with nearest-neighbor hopping t and a diagonal hopping t'. The calculations are carried out by using variational Monte Carlo method which treats the Gutzwiller projection explicitly. At large on-site Coulomb interaction U, the ground state is antiferromagnetic. As U decreases, the ground state becomes superconducting and eventually metallic. The phase diagram is obtained by extensive calculations. As compared to the strong effect of U/ t, the phase boundaries turn out to be less sensitive to t' / t. The result is consistent with the phase diagram in layered organic conductors and is compared to the earlier mean-field result based on the Gutzwiller approximation.-
dc.languageengen_HK
dc.publisherAmerican Physical Society. The Journal's web site is located at http://prb.aps.org/en_HK
dc.relation.ispartofPhysical Review B: Condensed Matter and Materials Physicsen_HK
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.rightsPhysical Review B: Condensed Matter and Materials Physics. Copyright © American Physical Society.en_HK
dc.subjectPhysics-
dc.titleVariational Monte Carlo studies of gossamer superconductivityen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1098-0121&volume=79&issue=14 article no. 144526&spage=&epage=&date=2009&atitle=Variational+Monte+Carlo+studies+of+gossamer+superconductivityen_HK
dc.identifier.emailZhang, FC: fuchun@hkucc.hku.hken_HK
dc.description.naturepublished_or_final_version-
dc.identifier.doi10.1103/PhysRevB.79.144526-
dc.identifier.hkuros165825en_HK
dc.identifier.volume79-
dc.identifier.issue14 article no. 144526-
dc.identifier.isiWOS:000265943200123-

Export via OAI-PMH Interface in XML Formats


OR


Export to Other Non-XML Formats