Article: Pseudogap and Fermi-arc evolution in the phase-fluctuation scenario
| Title | Pseudogap and Fermi-arc evolution in the phase-fluctuation scenario | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Authors | Han, Q1 2 Li, T2 Wang, ZD1 | ||||||||
| Issue Date | 2010 | ||||||||
| Publisher | American Physical Society. The Journal's web site is located at http://prb.aps.org/ | ||||||||
| Citation | Physical 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 | ||||||||
| Abstract | Pseudogap 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. | ||||||||
| ISSN | 1098-0121 2011 Impact Factor: 3.691 2011 SCImago Journal Rankings: 0.268 | ||||||||
| DOI | http://dx.doi.org/10.1103/PhysRevB.82.052503 | ||||||||
| ISI Accession Number ID | WOS:000281294700002
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. | ||||||||
| References | References in Scopus | ||||||||
| Grants | Quantum 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.contributor.author | Han, Q | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| dc.contributor.author | Li, T | ||||||||
| dc.contributor.author | Wang, ZD | ||||||||
| dc.date.accessioned | 2010-10-31T11:21:02Z | ||||||||
| dc.date.available | 2010-10-31T11:21:02Z | ||||||||
| dc.date.issued | 2010 | ||||||||
| dc.description.abstract | Pseudogap 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.grant | Quantum Order in Novel Materials: Superconductivity and Topological Order | ||||||||
| dc.description.grant | Quantum Order in Novel Materials: Superconductivity and Topological Order | ||||||||
| dc.description.grant | Quantum Order in Novel Materials: Superconductivity and Topological Order | ||||||||
| dc.description.grantcode | 102968 | ||||||||
| dc.description.grantcode | 102960 | ||||||||
| dc.description.grantcode | 102970 | ||||||||
| dc.description.nature | published_or_final_version | ||||||||
| dc.identifier.citation | Physical 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.doi | http://dx.doi.org/10.1103/PhysRevB.82.052503 | ||||||||
| dc.identifier.hkuros | 180173 | ||||||||
| dc.identifier.isi | WOS:000281294700002
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.issn | 1098-0121 2011 Impact Factor: 3.691 2011 SCImago Journal Rankings: 0.268 | ||||||||
| dc.identifier.issue | 5 | ||||||||
| dc.identifier.openurl | ![]() | ||||||||
| dc.identifier.scopus | eid_2-s2.0-77957295360 | ||||||||
| dc.identifier.uri | http://hdl.handle.net/10722/125267 | ||||||||
| dc.identifier.volume | 82 | ||||||||
| dc.language | eng | ||||||||
| dc.publisher | American Physical Society. The Journal's web site is located at http://prb.aps.org/ | ||||||||
| dc.publisher.place | United States | ||||||||
| dc.relation.ispartof | Physical Review B - Condensed Matter and Materials Physics | ||||||||
| dc.relation.references | References in Scopus | ||||||||
| dc.rights | Creative Commons: Attribution 3.0 Hong Kong License | ||||||||
| dc.rights | Physical Review B: Condensed Matter and Materials Physics. Copyright © American Physical Society. | ||||||||
| dc.title | Pseudogap and Fermi-arc evolution in the phase-fluctuation scenario | ||||||||
| dc.type | Article |
Author Affiliations
- The University of Hong Kong
- Renmin University of China


