| Autor: |
Lin, Y. L., Pekguleryuz, M. O., Lefebvre, J., Voyer, C. J., Ryan, D. H., Hilke, M. |
| Rok vydání: |
2009 |
| Předmět: |
|
| Druh dokumentu: |
Working Paper |
| Popis: |
Two-phase superconductor tapes were produced by blending high purity magnesium diboride powder with a liquid ethylcellulose-based polymeric binder. This procedure produced a material which is easily formable with a high superconducting transition temperature (38K). We show that the bulk superconducting properties are not affected by the presence of the binder, nor is there any evidence of a chemical reaction between the superconducting particles and the binder. However, the transport properties of the material are strongly affected by the presence of the binder, which leads to a seven order of magnitude increase of the normal state resistance along with a seven order of magnitude decrease of the transport critical current density. This new material is shown to be equivalent to a system of coupled Josephson junctions. |
| Databáze: |
arXiv |
| Externí odkaz: |
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