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Article: Pseudogap and Fermi-arc evolution in the phase-fluctuation scenario
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TitlePseudogap and Fermi-arc evolution in the phase-fluctuation scenario
 
AuthorsHan, Q2 1
Li, T2
Wang, ZD1
 
Issue Date2010
 
PublisherAmerican Physical Society. The Journal's web site is located at http://prb.aps.org/
 
CitationPhysical Review B - Condensed Matter And Materials Physics, 2010, v. 82 n. 5 [How to Cite?]
DOI: http://dx.doi.org/10.1103/PhysRevB.82.052503
 
AbstractPseudogap phenomena and the formation of Fermi arcs in underdoped cuprates are numerically studied in the presence of phase fluctuations that are simulated by an XY model. Most importantly the spectral function for each Monte Carlo sample is calculated directly and efficiently by the Chebyshev polynomials without having to diagonalize the fermion Hamiltonian, which enables us to handle a system large enough to achieve sufficient momentum/energy resolution. We find that the momentum dependence of the energy gap is identical to that of a pure d -wave superconductor well below the Kosterlitz-Thouless (KT) transition temperature (TKT) while displays an upturn deviation from cos kx -cos ky with increasing temperature. An abrupt onset of the Fermi arcs is observed above TKT and the arc length exhibits a similar temperature dependence to the thermally activated vortex excitations. © 2010 The American Physical Society.
 
ISSN1098-0121
2013 Impact Factor: 3.664
2013 SCImago Journal Rankings: 2.143
 
DOIhttp://dx.doi.org/10.1103/PhysRevB.82.052503
 
ISI Accession Number IDWOS:000281294700002
Funding AgencyGrant Number
RGC of Hong KongHKU7055/09P
HKUST3/CRF/09
HKU
Natural Science Foundation of China10674179
Funding Information:

We thank T. K. Lee and Y. Chen for helpful discussions, and A. Tsvelik for communication. The work was supported by the RGC of Hong Kong under Grants No. HKU7055/09P and No. HKUST3/CRF/09, the URC fund of HKU, the Natural Science Foundation of China under Grant No. 10674179.

 
ReferencesReferences in Scopus
 
GrantsQuantum Order in Novel Materials: Superconductivity and Topological Order
Quantum Order in Novel Materials: Superconductivity and Topological Order
Quantum Order in Novel Materials: Superconductivity and Topological Order
 
DC FieldValue
dc.contributor.authorHan, Q
 
dc.contributor.authorLi, T
 
dc.contributor.authorWang, ZD
 
dc.date.accessioned2010-10-31T11:21:02Z
 
dc.date.available2010-10-31T11:21:02Z
 
dc.date.issued2010
 
dc.description.abstractPseudogap phenomena and the formation of Fermi arcs in underdoped cuprates are numerically studied in the presence of phase fluctuations that are simulated by an XY model. Most importantly the spectral function for each Monte Carlo sample is calculated directly and efficiently by the Chebyshev polynomials without having to diagonalize the fermion Hamiltonian, which enables us to handle a system large enough to achieve sufficient momentum/energy resolution. We find that the momentum dependence of the energy gap is identical to that of a pure d -wave superconductor well below the Kosterlitz-Thouless (KT) transition temperature (TKT) while displays an upturn deviation from cos kx -cos ky with increasing temperature. An abrupt onset of the Fermi arcs is observed above TKT and the arc length exhibits a similar temperature dependence to the thermally activated vortex excitations. © 2010 The American Physical Society.
 
dc.description.naturepublished_or_final_version
 
dc.identifier.citationPhysical Review B - Condensed Matter And Materials Physics, 2010, v. 82 n. 5 [How to Cite?]
DOI: http://dx.doi.org/10.1103/PhysRevB.82.052503
 
dc.identifier.doihttp://dx.doi.org/10.1103/PhysRevB.82.052503
 
dc.identifier.hkuros180173
 
dc.identifier.isiWOS:000281294700002
Funding AgencyGrant Number
RGC of Hong KongHKU7055/09P
HKUST3/CRF/09
HKU
Natural Science Foundation of China10674179
Funding Information:

We thank T. K. Lee and Y. Chen for helpful discussions, and A. Tsvelik for communication. The work was supported by the RGC of Hong Kong under Grants No. HKU7055/09P and No. HKUST3/CRF/09, the URC fund of HKU, the Natural Science Foundation of China under Grant No. 10674179.

 
dc.identifier.issn1098-0121
2013 Impact Factor: 3.664
2013 SCImago Journal Rankings: 2.143
 
dc.identifier.issue5
 
dc.identifier.openurl
 
dc.identifier.scopuseid_2-s2.0-77957295360
 
dc.identifier.urihttp://hdl.handle.net/10722/125267
 
dc.identifier.volume82
 
dc.languageeng
 
dc.publisherAmerican Physical Society. The Journal's web site is located at http://prb.aps.org/
 
dc.publisher.placeUnited States
 
dc.relation.ispartofPhysical Review B - Condensed Matter and Materials Physics
 
dc.relation.projectQuantum Order in Novel Materials: Superconductivity and Topological Order
 
dc.relation.projectQuantum Order in Novel Materials: Superconductivity and Topological Order
 
dc.relation.projectQuantum Order in Novel Materials: Superconductivity and Topological Order
 
dc.relation.referencesReferences in Scopus
 
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License
 
dc.rightsPhysical Review B: Condensed Matter and Materials Physics. Copyright © American Physical Society.
 
dc.titlePseudogap and Fermi-arc evolution in the phase-fluctuation scenario
 
dc.typeArticle
 
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Author Affiliations
  1. The University of Hong Kong
  2. Renmin University of China