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SUMMARY:Transport and Thermodynamic Properties of High-Tc Superconductors 
 Calculated from the Energy-Momentum Dispersion. - James Storey\, Victoria 
 University\, New Zealand
DTSTART:20071017T101500Z
DTEND:20071017T111500Z
UID:TALK8491@talks.cam.ac.uk
CONTACT:Michael Sutherland
DESCRIPTION:By calculating the electronic entropy\, superfluid density\, t
 hermoelectric power and spin susceptibility from ARPES derived energy-mome
 ntum dispersions we establish overall consistency among these techniques. 
 \nIn light of these calculations the experimental data reveals the approac
 h of the Fermi level to a van Hove singularity in the overdoped regime\, t
 hereby forcing a revision of theories based on the so-called ‘van Hove s
 cenario’.\nComparison of the Tc phase diagram with the density of states
  at the Fermi level allows us to propose a universal pairing potential tha
 t reproduces both the doping dependence of Tc\, as well as the variation i
 n Tc\,max between different species of cuprate superconductors.\n
LOCATION:Mott Seminar Room\, Cavendish Laboratory\, Department of Physics
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