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Volumn 72, Issue 12, 1994, Pages 1874-1877

Self-consistent dx2-y2 pairing in a two-dimensional Hubbard model

Author keywords

[No Author keywords available]

Indexed keywords


EID: 3342985378     PISSN: 00319007     EISSN: None     Source Type: Journal    
DOI: 10.1103/PhysRevLett.72.1874     Document Type: Article
Times cited : (318)

References (22)
  • 1
    • 84927843084 scopus 로고    scopus 로고
    • A similar interplay occurs in paramagnon theories of3He;
  • 12
    • 84927843082 scopus 로고    scopus 로고
    • In fact, χ0s( q , 0 ) actually becomes slightly larger near the incommensurate momenta peaks in the superconducting phase leading to an enhancement of the coupling strength, Eq. (12), in this region.
  • 14
    • 0542424381 scopus 로고
    • Chien-Hua Pao and N. E. Bickers [, ] found that under some circumstances the opening of the dx2-y2 gap could lead to a weakening of the pairing interaction and, in the absence of dynamic pair breaking, a reduction in the 2 Δ0(0) / k Tc ratio. They also noted that if dynamic inelastic processes were included, 2 Δ0(0) / k Tc could increase over the BCS value.
    • (1991) Phys. Rev. B , vol.44 , pp. 10270
  • 15
    • 84927843081 scopus 로고    scopus 로고
    • While numerical Padé continuations are not always reliable, we found that the structure shown in Figs. 4(a) and 4(b) were stable for different Padé orders and believe for this model that they reflect the physical processes described.
  • 16
    • 0000642772 scopus 로고
    • Structure in the tunneling density of states due to one quasiparticle decaying into three has been discussed by
    • (1993) Phys. Rev. Lett. , vol.70 , pp. 1529
    • Coffey, D.1    Coffey, L.2
  • 18
    • 84927843080 scopus 로고    scopus 로고
    • SCE Conference report, 1991 (to be published).
  • 19
    • 35949004738 scopus 로고
    • As discussed by, the dx2-y2 -wave gap solution remains stable for sizable incommensurability, well in excess of 0.24. We expect that Tc will decrease for larger incommensurability.
    • (1992) Phys. Rev. B , vol.46 , pp. 14803
    • Monthoux, P.1    Balatsky, A.V.2    Pines, D.3
  • 20
    • 84927843079 scopus 로고    scopus 로고
    • Note, however, that while our calculations for SIGMA are conserving, one must include vertex corrections in order to maintain a conserving approximation for chi. These vertex corrections will reduce chi.
  • 22
    • 84927843077 scopus 로고    scopus 로고
    • St. Lenck, J. P. Carbotte, and R. C. Dynes (to be published).


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.