Abstract
Carbon coated Sn and Pb spheres of radius smaller than the superconducting coherence length of the bulk materials were fabricated using a sonochemical technique. Both samples reveal Type-I superconducting behavior characterized by supercritical fields. Analysis of the data reveal the expected enhancement of the critical field, Hc , in the Pb but not in the Sn nano-spheres. The different behavior of the Sn spheres is attributed to carbon doping which results in a decrease of their effective coherence length to below the spheres size.
| Original language | English (US) |
|---|---|
| Article number | 012045 |
| Journal | Journal of Physics: Conference Series |
| Volume | 969 |
| Issue number | 1 |
| DOIs | |
| State | Published - Apr 19 2018 |
| Externally published | Yes |
| Event | 28th International Conference on Low Temperature Physics, LT 2018 - Gothenburg, Sweden Duration: Aug 9 2017 → Aug 16 2017 |
Bibliographical note
Publisher Copyright:© Published under licence by IOP Publishing Ltd.