Short-ranged and short-lived charge-density-wave order and pseudogap features in underdoped cuprate superconductors

ANDRÉS GRECO; MATÍAS BEJAS

PHYSICAL REVIEW B

AMER PHYSICAL SOC

Año: 2011 vol. 83 p. 1 - 4

1098-0121

The pseudogap phase of high-Tc cuprates is controversially attributed to preformed pairs or to a phase which coexists and competes with superconductivity. One of the challenges is to develop theoretical and experimental studies in order to distinguish between both proposals. Very recently, researchers at Stanford have reported [ M. Hashimoto et al. Nat. Phys. 6 414 (2010); R.-H. He et al. Science 331 1579 (2011)] angle-resolved photoemission spectroscopy experiments on Pb-Bi2201 supporting the point of view that the pseudogap is distinct from superconductivity and associated to a spacial symmetry breaking without long-range order. In this paper, we show that many features reported by these experiments can be described in the framework of the t-J model considering self-energy effects in the proximity to a d charge-density-wave instability.