تقرير
Effect of annealing on the superconducting properties of a-Nb(x)Si(1-x) thin films
| العنوان: | Effect of annealing on the superconducting properties of a-Nb(x)Si(1-x) thin films |
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| المؤلفون: | Crauste, O., Gentils, A., Couëdo, F., Dolgorouky, Y., Bergé, L., Collin, S., Marrache-Kikuchi, C. A., Dumoulin, L. |
| المصدر: | Physical Review B v87 i14 p144514 (2013) |
| سنة النشر: | 2013 |
| المجموعة: | Condensed Matter |
| مصطلحات موضوعية: | Condensed Matter - Superconductivity |
| الوصف: | a-Nb(x)Si(1-x) thin films with thicknesses down to 25 {\AA} have been structurally characterized by TEM (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{\deg}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_square as the relevant parameter to describe the SIT. Comment: 9 pages, 12 figures |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1103/PhysRevB.87.144514 |
| URL الوصول: | http://arxiv.org/abs/1304.4629 |
| رقم الأكسشن: | edsarx.1304.4629 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1103/PhysRevB.87.144514 |
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