Anisotropic scattering and superconductivity in high-image cuprates Original Research Article

The isotropic and anisotropic components of the transport scattering rate in overdoped Tl2Ba2CuO6+δTl2Ba2CuO6+δ are determined for a range of TcTc values between 15 and 35 K by angle-dependent magnetoresistance measurements at View the MathML sourceT=40K. The anisotropic scattering term is found to scale linearly with TcTc and appears to vanish at the point where superconductivity is destroyed, establishing a clear link between the superconducting and normal state physics. Comparison with results from angle resolved photoemission spectroscopy suggests that the transport and quasi-particle lifetimes are very different.