Effect of annealing on the superconducting properties of a-NbxSi1−x thin films
O. Crauste, A. Gentils, F. Couëdo, Y. Dolgorouky, L. Bergé, S. Collin, C. A. Marrache-Kikuchi, L. Dumoulin
DOI 10.1103/PhysRevB.87.144514 · Physical Review B
Active bibliographic source — not scientific approval
Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.
Abstract
a-NbxSi1−x thin films with thicknesses down to 25 Å have been structurally characterized by transmission electron microscopy measurements. As-deposited or annealed films are shown to be continuous and homogeneous in composition and thickness, up to an annealing temperature of 500 ∘C. We have carried out low-temperature transport measurements on these films close to the superconductor-to-insulator transition (SIT) and shown a qualitative difference between the effect of annealing or composition and a reduction of the film thickness on the superconducting properties of a-NbSi. These results question the pertinence of the sheet resistance R□ as the relevant parameter to describe the SIT.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| NbxSi1-x Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| Nb18Si82 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
Similar papers
Destruction of superconductivity in disordered materials: A dimensional crossover
similarity 0.93O. Crauste et al.
Source status unknown — claims are unverified
Superconducting transition temperature in a Nb/NbxSi1−x bilayer system
similarity 0.92Julia W. P. Hsu et al.
Source status unknown — claims are unverified
Superconducting fluctuations, weak localization, and electron interactions in three-dimensional Nb:Si
similarity 0.92Mike Denhoff & Suso Gygax
Source status unknown — claims are unverified
Analysis of the ghost and mirror fields in the Nernst signal induced by superconducting fluctuations
similarity 0.92A. Glatz et al.
Source status unknown — claims are unverified
Effect of annealing on the superconducting properties of a-Nb(x)Si(1-x) thin films
similarity 0.92O. Crauste et al. · 2013 · arXiv:1304.4629
Source status unknown — claims are unverified
Overactivated transport in the localized phase of the superconductor-insulator transition
similarity 0.91V. Humbert et al. · 2021 · arXiv:2102.08642
Source status unknown — claims are unverified