| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1484458 | Journal of Non-Crystalline Solids | 2008 | 4 Pages |
Abstract
Studies in superconducting properties of NbN-SiO2 films are reported. The films were obtained through nitridation of sol-gel derived Nb2O5-SiO2 coatings at 1200 °C, a process leading to the formation of disordered structures with NbN metallic grains dispersed in the insulating SiO2 matrix. Electrical resistivity was measured with the conventional four-terminal method in the temperature range from 5 to 280 K. The samples' superconducting properties, examined with magnetically modulated microwave absorption (MMMA), depend on the NbN/SiO2 molar ratio and the film's thickness.
Keywords
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Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
B. KoÅcielska, W. Jurga,