Protected Nodes and the Collapse of Fermi Arcs in High-Tc Cuprate Superconductors
A. Kanigel, U. Chatterjee, M. Randeria, M. R. Norman, S. Souma, M. Shi, Z. Z. Li, H. Raffy, J. C. Campuzano
DOI 10.1103/PhysRevLett.99.157001 · Physical Review Letters
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
Angle resolved photoemission on underdoped Bi2Sr2CaCu2O8 reveals that the magnitude and d-wave anisotropy of the superconducting state energy gap are independent of temperature all the way up to Tc. This lack of T variation of the entire k-dependent gap is in marked contrast to mean field theory. At Tc the point nodes of the d-wave gap abruptly expand into finite length “Fermi arcs.” This change occurs within the width of the resistive transition, and thus the Fermi arcs are not simply thermally broadened nodes but rather a unique signature of the pseudogap phase.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Bi2Sr2CaCu2O8 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 80 | Pressure not reported | unknown |
| Bi2Sr2CaCu2O8 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 67 | Pressure not reported | unknown |
Similar papers
Unmasking the nodal quasiparticle dynamics in cuprate superconductors using low-energy photoemission
similarity 0.96T. Yamasaki et al.
Source status unknown — claims are unverified
Fermi arc in the superconducting state of impurity-doped Bi2Sr2CaCu2O8
similarity 0.95T. Sato et al.
Source status unknown — claims are unverified
Rapid suppression of the superconducting gap in overdoped Bi2Sr2CaCu2O8+δ
similarity 0.94P. J. White et al.
Source status unknown — claims are unverified
Evidence for the Importance of Extended Coulomb Interactions and Forward Scattering in Cuprate Superconductors
similarity 0.94S. Johnston et al.
Source status unknown — claims are unverified
Formation of Gapless Fermi Arcs and Fingerprints of Order in the Pseudogap State of Cuprate Superconductors
similarity 0.94Takeshi Kondo et al.
Source status unknown — claims are unverified
Phenomenology of the low-energy spectral function in high-Tc superconductors
similarity 0.94M. R. Norman et al.
Source status unknown — claims are unverified