Physics – Condensed Matter – Superconductivity
Scientific paper
2005-11-21
Phys. Rev. B 73, 024502 (2006)
Physics
Condensed Matter
Superconductivity
to be published in Phys. Rev. B
Scientific paper
10.1103/PhysRevB.73.024502
The non-Ohmic effect of a high electric field on the out-of-plane magneto-conductivity of a layered superconductor near the superconducting transition is studied in the frame of the Langevin approach to the time-dependent Ginzburg-Landau equation. The transverse fluctuation conductivity is computed in the self-consistent Hartree approximation for an arbitrarily strong electric field and a magnetic field perpendicular to the layers. Our results indicate that high electric fields can be effectively used to suppress the out-of-plane fluctuation conductivity in high-temperature superconductors and a significant broadening of the transition induced by a strong electric field is predicted. Extensions of the results are provided for the case when the electric field is applied at an arbitrary angle with respect to the layers, as well as for the three-dimensional anisotropic regime of a strong interlayer coupling.
Lang Walter
Puica Ionut
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