Nonlinear fluctuation conductivity of a layered superconductor: Crossover in strong electric fields

A. A. Varlamov; L. Reggiani

doi:10.1103/PhysRevB.45.1060

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Nonlinear fluctuation conductivity of a layered superconductor: Crossover in strong electric fields

A. A. Varlamov, L. Reggiani

DOI 10.1103/PhysRevB.45.1060 · Physical Review B

T1

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Abstract

The fluctuation conductivity of a clean layered superconductor in an arbitrary electric field is studied. It is shown that in the vicinity of Tc an unusual crossover from three-dimensional to two-dimensional behavior in the non-Ohmic region of the electric field excess current dependence takes place. In spite of the large size of the fluctuation Cooper pairs, the strong electric field gives rise to additional decay and to an effective freezing of the number of degrees of freedom.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
La3Ni2O7 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown