Nonlinear fluctuations of the order parameter and paraconductivity suppression in a magnetic field
G. G. SergeevaPhysicotechnical Institute, Academy of Sciences of the Ukrainian SSR, KharkovAleksei V. ChechkinPhysicotechnical Institute, Academy of Sciences of the Ukrainian SSR, Kharkov
ABI
Abstract
The expressions for the transverse and longitudinal components of the Aslamazov-Larkin fluctuational conductivity (paraconductivity) are obtained by taking into account the nonlinear interaction of fluctuations for layered HTS in a magnetic field H∥c. The introduction of the nonlinear interaction makes it possible to describe satisfactorily (i.e., without a fitting factor) the observed temperature dependence of resistivity in a magnetic field above Tc
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