Temperature dependent Fermi arcs in the normal state of the underdoped cuprate superconductors

Details Temperature dependent Fermi arcs in the normal state of the underdoped cuprate superconductors Temperature dependent Fermi arcs in the normal state of the underdoped cuprate superconductors

2006-11-30

arxiv.org/abs/cond-mat/0611762v4

Phys. Rev. B 75, R140507 (2007)

Physics

Condensed Matter

Strongly Correlated Electrons

4+ pages, 4 eps figures (significantly revised draft including spectral function plots - submitted to PRB)

Scientific paper

10.1103/PhysRevB.75.140507

Angle resolved photoemission experiments by Kanigel, et al (cond-mat/0605499) [Nature Physics 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 arc length 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.

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