Flux-flow critical-state susceptibility of superconductors
The field-amplitude Hm and circular frequency ω dependent ac susceptibility, χ=χ'-jχ'', of a hard superconducting cylinder with flux-flow type current-voltage characteristic is calculated. A remarkable feature of the resultant χ(Hm,ω) is that both the maximum χ'', χ'�...
| Autores: | , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2005 |
| País: | España |
| Institución: | Universitat Autònoma de Barcelona |
| Repositorio: | Dipòsit Digital de Documents de la UAB |
| Idioma: | inglés |
| OAI Identifier: | oai:ddd.uab.cat:116312 |
| Acceso en línea: | https://ddd.uab.cat/record/116312 https://dx.doi.org/urn:doi:10.1063/1.1947370 |
| Access Level: | acceso abierto |
| Palabra clave: | Conductors Josephson junctions Superconductors High temperature superconductors Josephson effect Critical currents Demagnetization High temperature superconductivity Rotating flows Superconductivity models |
| Sumario: | The field-amplitude Hm and circular frequency ω dependent ac susceptibility, χ=χ'-jχ'', of a hard superconducting cylinder with flux-flow type current-voltage characteristic is calculated. A remarkable feature of the resultant χ(Hm,ω) is that both the maximum χ'', χ''m, and dlgHm(χ''m)/dlgω increase with increasing ω. This behavior is observed in actual Bi-2223/Ag tapes and YBa2Cu3O7-δ-coated conductors. Our result provides a useful tool to study the intergranular critical state in high-temperature superconductors. |
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