Nodal-antinodal dichotomy from pairing disorder in d-wave superconductors

Dimitrios Galanakis; Stefanos Papanikolaou

doi:10.1103/PhysRevB.82.060507

← Back to search

Nodal-antinodal dichotomy from pairing disorder in d-wave superconductors

Dimitrios Galanakis, Stefanos Papanikolaou

DOI 10.1103/PhysRevB.82.060507 · Physical Review B

T1

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 study the basic features of the local density of states (LDOS) observed in scanning tunnel microscope experiments on high-Tc d-wave superconductors in the context of a minimal model of a d-wave superconductor which has weakly modulated off-diagonal disorder. We show that the low- and high-energy features of the LDOS are consistent with the observed experimental patterns and, in particular, the anisotropic local domain features at high energies. At low energies, we obtain not only the scattering peaks predicted by the octet model [Y. Kohsaka et al., Science 315, 1380 (2007)], but also weak features that should be experimentally accessible. Finally, we show that the emerging features of the LDOS lose their correspondence with the features of the imposed disorder, as its complexity increases spatially.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
La2-xBaxCuO4 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown
La2-xSrxCuO4 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown
Bi2Sr2CaCu2O8+δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown
Ca2-xNaxCuO2Cl2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown