Thursday, October 19, 2006, 1:30 pm — Small seminar room, Bldg 510
Abstract: We adopt a model where Fermi surface has nested (antinodal) and
non-nested (nodal) parts. Fermions of the nodal regions
develop spectral gaps below T* where they form 1D spin liquids. The
superconducting order is prevented by strong 1D fluctuations. The latter
fluctuations are eventually suppressed by the Josephson coupling between
order parameters at (pi,0) and (0,pi).
Their relative phase gets locked
at some crossover temperature T**. Below T** the system develops a
strong fluctuational diamagnetic response and displays the Nernst effect. The
remaining total phase is locked at Tc where the 2nd order SC transition
occurs.
Hosted by: Robert Konik
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