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- Publisher Website: 10.1103/PhysRevB.74.094515
- Scopus: eid_2-s2.0-33749246085
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Article: Superconducting pairing symmetries in anisotropic triangular quantum antiferromagnets
Title | Superconducting pairing symmetries in anisotropic triangular quantum antiferromagnets |
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Authors | |
Issue Date | 2006 |
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), 2006, v. 74 n. 9, article no. 094515 How to Cite? |
Abstract | Motivated by the recent discovery of a low temperature spin liquid phase in layered organic compound κ- (ET)2 Cu2 (CN)3 which becomes a superconductor under pressure, we examine the phase transition of Mott insulating and superconducting (SC) states in a Hubbard-Heisenberg model on an anisotropic triangular lattice. We use a renormalized mean field theory to study the Gutzwiller projected BCS wave functions. The half filled electron system is a Mott insulator at large onsite repulsion U, and is a superconductor at a moderate U. The symmetry of the SC state depends on the anisotropy, and is gapful with d x2 - y2 +i dxy symmetry near the isotropic limit and is gapless with d x2 - y2 symmetry at small anisotropy ratio. © 2006 The American Physical Society. |
Persistent Identifier | http://hdl.handle.net/10722/92298 |
ISSN | 2014 Impact Factor: 3.736 |
ISI Accession Number ID | |
References |
DC Field | Value | Language |
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dc.contributor.author | Gan, JY | en_HK |
dc.contributor.author | Chen, Y | en_HK |
dc.contributor.author | Zhang, FC | en_HK |
dc.date.accessioned | 2010-09-17T10:41:55Z | - |
dc.date.available | 2010-09-17T10:41:55Z | - |
dc.date.issued | 2006 | en_HK |
dc.identifier.citation | Physical Review B (Condensed Matter and Materials Physics), 2006, v. 74 n. 9, article no. 094515 | - |
dc.identifier.issn | 1098-0121 | en_HK |
dc.identifier.uri | http://hdl.handle.net/10722/92298 | - |
dc.description.abstract | Motivated by the recent discovery of a low temperature spin liquid phase in layered organic compound κ- (ET)2 Cu2 (CN)3 which becomes a superconductor under pressure, we examine the phase transition of Mott insulating and superconducting (SC) states in a Hubbard-Heisenberg model on an anisotropic triangular lattice. We use a renormalized mean field theory to study the Gutzwiller projected BCS wave functions. The half filled electron system is a Mott insulator at large onsite repulsion U, and is a superconductor at a moderate U. The symmetry of the SC state depends on the anisotropy, and is gapful with d x2 - y2 +i dxy symmetry near the isotropic limit and is gapless with d x2 - y2 symmetry at small anisotropy ratio. © 2006 The American Physical Society. | en_HK |
dc.language | eng | en_HK |
dc.publisher | American Physical Society. The Journal's web site is located at http://prb.aps.org/ | en_HK |
dc.relation.ispartof | Physical Review B (Condensed Matter and Materials Physics) | - |
dc.title | Superconducting pairing symmetries in anisotropic triangular quantum antiferromagnets | en_HK |
dc.type | Article | en_HK |
dc.identifier.email | Zhang, FC: fuchun@hkucc.hku.hk | en_HK |
dc.identifier.authority | Zhang, FC=rp00840 | en_HK |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.doi | 10.1103/PhysRevB.74.094515 | en_HK |
dc.identifier.scopus | eid_2-s2.0-33749246085 | en_HK |
dc.relation.references | http://www.scopus.com/mlt/select.url?eid=2-s2.0-33749246085&selection=ref&src=s&origin=recordpage | en_HK |
dc.identifier.volume | 74 | en_HK |
dc.identifier.issue | 9 | en_HK |
dc.identifier.spage | article no. 094515 | - |
dc.identifier.epage | article no. 094515 | - |
dc.identifier.eissn | 1550-235X | - |
dc.identifier.isi | WOS:000240871700079 | - |
dc.publisher.place | United States | en_HK |
dc.identifier.scopusauthorid | Gan, JY=16024720900 | en_HK |
dc.identifier.scopusauthorid | Chen, Y=7601428288 | en_HK |
dc.identifier.scopusauthorid | Zhang, FC=14012468800 | en_HK |
dc.identifier.issnl | 1098-0121 | - |