Abstract
We experimentally study a triangular, micrometer-sized Pb single crystal through ballistic Hall micro-probe magnetometry. This mesoscopic system allows an easy adjustment of the maximum accomodated fluxoid state by tuning the temperature. Magnetization loops of the type-I superconductor were measured at various temperatures up to Tc = 7.18 K. We observe several novel features, including mestastable fluxoid states and changes in the normal-to-superconducting transition mechanism with temperature.
| Original language | English |
|---|---|
| Pages (from-to) | 793-794 |
| Number of pages | 2 |
| Journal | Physica C: Superconductivity and its Applications |
| Volume | 460-462 II |
| Issue number | SPEC. ISS. |
| DOIs | |
| State | Published - Sep 1 2007 |
| Externally published | Yes |
Funding
The work was supported by the US Department of Energy, Office of Science, Office of Basic Energy Sciences, under contract W-31-109-Eng-38, the Flemish Science Foundation (FWO-VI), the Belgian Science Policy (IUAP), and the JSPS/ESF-NES Program.
Keywords
- Fluxoid quantization
- Hall micro-probe
- Lead
- Mesoscopic superconductivity
- Single crystal