Superconductivity assisted by interlayer pair hopping in multilayered cuprates
Kazutaka Nishiguchi, Kazuhiko Kuroki, Ryotaro Arita, Takashi Oka, Hideo Aoki
DOI 10.1103/PhysRevB.88.014509 · Physical Review B
Active bibliographic source — not scientific approval
Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.
Abstract
In order to explore why the multilayered cuprates have such high Tc values, we have examined various interlayer processes. Since the interlayer one-electron hopping has little effect on the band structure, we turn to the interlayer pair hopping. The superconductivity in a double-layer Hubbard model with and without the interlayer pair hopping, as studied by solving the Eliashberg equation with the fluctuation exchange approximation, reveals that the interlayer pair hopping acts to increase the pairing interaction and the self-energy simultaneously, but that the former effect supersedes the latter and enhances the superconductivity, along with how the sign of the interlayer off-site pair hopping determines the relative configuration of d waves between the adjacent layers. Study of the triple-layer case with the interlayer pair hopping further reveals that the superconductivity is further enhanced but tends to be saturated toward the triple-layer case.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| HgBa2Can-1CunO2n+2+δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
Similar papers
Coherent resonant pinning, oxygen ordering, and high-temperature superconductivity in the multilayer cuprates
similarity 0.97J. C. Phillips
Source status unknown — claims are unverified
Scanning tunneling microscopy studies of the cuprate superconductor HgBa2Ca2Cu3O8+δ
similarity 0.95Fan Zhang et al.
Source status unknown — claims are unverified
Generalization of interlayer tunneling models to cuprate superconductors with charge density waves
similarity 0.95Hércules Santana & E. V. L. de Mello
Source status unknown — claims are unverified
Emergence of charge order in a staggered loop-current phase of cuprate high-temperature superconductors
similarity 0.94W. A. Atkinson et al.
Source status unknown — claims are unverified
Microscopic theory of weak pseudogap behavior in the underdoped cuprate superconductors: General theory and quasiparticle properties
similarity 0.94Jörg Schmalian et al.
Source status unknown — claims are unverified
Multiorbital analysis of the effects of uniaxial and hydrostatic pressure on Tc in the single-layered cuprate superconductors
similarity 0.94Hirofumi Sakakibara et al.
Source status unknown — claims are unverified