Grain boundaries in high-Tc superconductors: insights and improyements
| Autor: | R. R. Schulz, H. Bielefeldt, Christof W. Schneider, Hans Hilgenkamp, Jochen Mannhart, A. Schmehl, B. Goetz |
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| Rok vydání: | 2000 |
| Předmět: |
Superconductivity
Materials science Condensed matter physics business.industry General Chemical Engineering General Physics and Astronomy Mineralogy Electronic structure Semiconductor Condensed Matter::Superconductivity Joint flexion Grain boundary Critical current Electronic band structure business |
| Zdroj: | Philosophical Magazine B. 80:827-834 |
| ISSN: | 1463-6417 1364-2812 |
| DOI: | 10.1080/01418630008221948 |
| Popis: | The properties of grain boundaries play a decisive role in the understanding and design of numerous experiments, as well as for most applications of high-T c superconductors. For basie reasons to be discussed, the physics of interfaces in high-T c superconductors and in semiconductors are surprisingly closely related. As a consequence, the behaviour of interfaces in hign-T c superconductors is considerably richer and more exciting than in conventional metallic superconductors. Based on these considerations, we developed a model to describe the electronic behaviour of grain boundaries in high-T c superconductors. Guided by this model, we were able to meet a long-standing challenge of high-T c superconductivity and to inerease the critical current densities of the grain boundaries by large factors. |
| Databáze: | OpenAIRE |
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