Nodal Quasiparticle Life Time in High-Tc Cuprates

ORAL

Abstract

Angle-Resolved Photoemission Spectroscopy (ARPES) are used to study the temperature dependence of nodal quasiparticle life time of Bi$_2$Sr$_2$CaCu$_2$O$_8$ (Bi2212) with different doping levels. For optimally doped (OP) and overdoped (OD) samples, a sudden change is observed in the temperature dependence of the scattering rate at Tc, however this change is not obvious in the underdoped (UD) samples.

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Authors

  • Zhihui Pan

    • Boston College

  • H.B. Yang

  • P. Richard

  • J.H. Ma

  • M. Neupane

  • Y.M. Xu

  • A. Shekharan

  • H. Ding

  • G. Gu

  • T. Valla

  • P.D. Johnson

    • Department of Physics, Boston College, MA