Life of the nodal quasiparticles in Bi-2212 as seen by ARPES

Details Life of the nodal quasiparticles in Bi-2212 as seen by ARPES Life of the nodal quasiparticles in Bi-2212 as seen by ARPES

2005-08-24

arxiv.org/abs/cond-mat/0508574v1

J. Phys. Chem. Solids 67, 201-207 (2006)

Physics

Condensed Matter

Superconductivity

6 revtex pages, short review, presented at SNS 2004

Scientific paper

10.1016/j.jpcs.2005.10.107

While the pronounced doping dependence of the quasiparticle spectral weight in the antinodal region of the superconducting cuprates, as seen by ARPES, unambiguously points to the magnetic origin of the strong electron-boson coupling there, the nature of the electron scattering in the nodal direction remained unclear. Here we present a short review of our recent detailed investigations of the nodal direction of Bi-2212. Our findings prove the existence of well defined quasiparticles even in the pseudogap state and show that the essential part of the quasiparticle scattering rate, which appears on top of Auger-like electron-electron interaction, also implies a magnetic origin.

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