Temperature dependent Fermi arcs in the normal state of the underdoped cuprate superconductors
Arun Paramekanti, Erhai Zhao
DOI 10.1103/PhysRevB.75.140507 · Physical Review B
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Abstract
Angle-resolved photoemission experiments by Kanigel et al. [Nat. Phys. 2, 447 (2006)] have made a remarkable observation that low-energy electronic excitations in the normal state of underdoped cuprate superconductors exist on open “Fermi arcs” instead of a closed Fermi surface. These arcs shrink upon cooling, with the arclength appearing to extrapolate to nodal points at zero temperature. We show that this striking non-Fermi-liquid behavior could result from the underdoped normal state above Tc lying in the vicinity of a quantum phase transition between a d-wave superconductor and a correlated insulating phase.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Bi2Sr2CaCu2O8+δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| YBa2Cu3O6+x Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
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