Strong-coupling effects in d-wave superconductors
J. P. Carbotte, C. Jiang
DOI 10.1103/PhysRevB.48.4231 · 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
At least in some high-Tc oxides there is strong experimental evidence for the existence of a very anisotropic gap and perhaps even for an order parameter of dx2-y2 symmetry in the CuO plane. To achieve simple BCS fits to data, however, it is often necessary to introduce an arbitrary and substantial increase, over its BCS value, for the ratio of the gap to critical temperature. This is taken as an indication of the importance of strong-coupling corrections. Here we study such effects within a simple Eliashberg separable d-wave model and find only limited support for the above procedure. More elaborate calculations involving other corrections to BCS will be required to achieve a definitive comparison between theory and experiment.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| YBa2Cu3O7 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
Similar papers
Slow relaxations and history dependence of the transport properties of layered superconductors
similarity 0.97Raphaël Exartier & Leticia F. Cugliandolo
Source status unknown — claims are unverified
Gauge invariance and transport properties in superconductors above Tc
similarity 0.97A. G. Aronov et al.
Source status unknown — claims are unverified
Model for the reversible magnetization of high-κ type-II superconductors: Application to high-Tc superconductors
similarity 0.97Zhidong Hao et al.
Source status unknown — claims are unverified
Transverse magnetization, torque, and anisotropy in anisotropic type-II superconductors in the mixed state
similarity 0.96Zhidong Hao
Source status unknown — claims are unverified
Phenomenological model for history effects and metastability in weakly pinned superconductors
similarity 0.96G. Ravikumar et al.
Source status unknown — claims are unverified
Relationship between the Superconducting Energy Gap and the Critical Temperature in High- Tc Superconductors
similarity 0.96Christos Panagopoulos & Tao Xiang
Source status unknown — claims are unverified