Renormalized Superconducting Fluctuations in Magnetic Field -Extrapolation to Lower Temperature-

Abstract

The renormalized theory of order parameter fluctuations is developed beyond the perturbation scheme to examine low temperature side of the transition region in type II superconductors under a strong magnetic field. The specific heat, the resistivity, and correlation function of order parameter amplitude related to the flux lattice structure in the mean field theory are calculated within the lowest Landau level by means of several approximation methods. The resistivity results are discussed in regard to high temperature superconductors (HTSC). Especially, comparisons with the resistivity data are given for the case with the field parallel to current.