Reply to Comment on "High-field studies of superconducting fluctuations in high-Tc cuprates: Evidence for a small gap distinct from the large pseudogap" by M.V. Ramallo et al

Abstract

The experimental investigations done in our paper Phys.Rev.B84,014522(2011)
allowed us to establish that the superconducting fluctuations (SCF) always die
out sharply with increasing T. But contrary to the claim done in the comment of
Ramallo et al., this sharp cutoff of SCF measured in YBa2Cu3O{6+x} depends on
hole doping and/or disorder. So our data cannot be used to claim for a
universality of the extended gaussian Ginzburg Landau theory proposed by the
authors of the comment. Furthermore, to explain quantitatively our data near
optimal doping using this model they need to consider that fluctuations in the
two CuO2 planes of a bilayer are totally decoupled, which is not physically
well justified. On the contrary a consistent interpretation of all our data
(paraconductivity, Nernst effect and magnetoresistance) has been done by
considering that the coupling between the two layers of the unit cell is
dominant at least up to 1.1Tc.