Correlation between the superconducting transition temperature and anisotropic quasiparticle scattering in Tl2Ba2CuO6+delta.
Angle-dependent magnetoresistance measurements are used to determine the isotropic and anisotropic components of the transport scattering rate in overdoped Tl2Ba2CuO6+delta for a range of Tc values between 15 and 35 K. The size of the anisotropic scattering term is found to scale linearly with Tc, establishing a link between the superconducting and normal state physics. A comparison with results from angle resolved photoemission spectroscopy indicates that the transport and quasiparticle lifetimes are distinct.
Abdel-Jawad
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M
H.H. Wills Physics Laboratory, University of Bristol, Bristol BS8 1TL, United Kingdom.
Analytis
J G
JG
Balicas
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L
Carrington
A
A
Charmant
J P H
JP
French
M M J
MM
Hussey
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NE