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Critical fluctuation conductivity in layered superconductors in a strong electric field

I. Puica, W. Lang

DOI 10.1103/PhysRevB.68.054517 · Physical Review B

T1

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Abstract

The paraconductivity, originating from critical superconducting order-parameter fluctuations in the vicinity of the critical temperature in a layered superconductor, is calculated in the frame of the self-consistent Hartree approximation for an arbitrarily strong electric field and zero magnetic field. The paraconductivity diverges less steep towards the critical temperature in the Hartree approximation than in the Gaussian one, and it shows a distinctly enhanced variation with the electric field. Our results indicate that high electric fields can be effectively used to suppress order-parameter fluctuations in high-temperature superconductors.

Source-reported materials — not catalogue approval

FormulaReported Tc (K)Pressure (GPa)Type
YBa2Cu3O6x

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—Pressure not reportedunknown

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