Superconducting fluctuations, weak localization, and electron interactions in three-dimensional Nb:Si

Mike Denhoff; Suso Gygax

doi:10.1103/PhysRevB.34.151

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Superconducting fluctuations, weak localization, and electron interactions in three-dimensional Nb:Si

Mike Denhoff, Suso Gygax

DOI 10.1103/PhysRevB.34.151 · Physical Review B

T1

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Abstract

Measurements of the temperature-dependent conductivity and the magnetoconductivity of a three-dimensional (3D) Nb:Si film are presented. These results are analyzed using superconducting fluctuation, weak localization, and electron-electron interaction theories, giving values for the inelastic scattering time and the spin-orbit scattering time. It was found that the Aslamasov-Larkin term of the superconducting fluctuations was necessary to explain the data and that the function β(H) in the Maki-Thompson term is not as yet satisfactorily derived by theory. The magnetoconductance results for a 2D Nb:Si film are given for a comparison.

Source-reported materials — not catalogue approval

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