Gap renormalization in dirty anisotropic superconductors: Implications for the order parameter of the cuprates
R. Fehrenbacher, M. R. Norman
DOI 10.1103/PhysRevB.50.3495 · 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
We contrast the effects of nonmagnetic impurities on the properties of superconductors having a dx2−y2 order parameter, and a highly anisotropic s-wave (ASW) gap with the same nodal structure. The nonvanishing, impurity-induced, off-diagonal self-energy in the ASW state is shown to inhibit the low-energy excitations present in the clean system, leading to a qualitatively different impurity response of the single-particle density of states compared to the dx2−y2 state. We discuss how this behavior can be employed to distinguish one state from the other by an analysis of high-resolution angle-resolved photoemission spectra.
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
Microscopic theory of weak pseudogap behavior in the underdoped cuprate superconductors: General theory and quasiparticle properties
similarity 0.96Jörg Schmalian et al.
Source status unknown — claims are unverified
Antiferromagnetic interactions and the superconducting gap function
similarity 0.96R. J. Radtke et al.
Source status unknown — claims are unverified
Importance of structural instability to high-temperature superconductivity
similarity 0.96A. Bussmann-Holder et al.
Source status unknown — claims are unverified
Instability of a tilted vortex line in magnetically coupled layered superconductors
similarity 0.96M. Benkraouda & John R. Clem
Source status unknown — claims are unverified
Upper critical field Hc2 calculations for the high critical temperature superconductors considering inhomogeneities
similarity 0.95E. S. Caixeiro et al.
Source status unknown — claims are unverified
Elastic and inelastic quasiparticle tunneling between anisotropic superconductors
similarity 0.95Yung-mau Nie & L. Coffey
Source status unknown — claims are unverified