Current-induced vortex glass transition in YBa2Cu3Ox thin films
Nonlinear currentvoltage curves were measured in c-oriented YBa2Cu3Ox thin films at zero external magneticfield. We demonstrated that even in this case the vortex glass model can be used to extract from a criticalscaling analysis the indexes z and n. We associated this behavior to the vortex excita...
| Autores: | , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2001 |
| País: | México |
| Institución: | Centro de Investigación y de Estudios Avanzados del IPN |
| Repositorio: | Redalyc-CINVESTAV |
| OAI Identifier: | oai:redalyc.org:94201204 |
| Acceso en línea: | https://www.redalyc.org/articulo.oa?id=94201204 |
| Access Level: | acceso abierto |
| Palabra clave: | Física, Astronomía y Matemáticas YBCO thin film vortex glass transition and current voltage characteristics |
| Sumario: | Nonlinear currentvoltage curves were measured in c-oriented YBa2Cu3Ox thin films at zero external magneticfield. We demonstrated that even in this case the vortex glass model can be used to extract from a criticalscaling analysis the indexes z and n. We associated this behavior to the vortex excitations induced by theapplied current. Our results showed that small z and large glass temperature values are related with a wide andinhomogeneous distribution of pinning forces. The broadening of this distribution was caused by a slightgrain misalignment formed during the growth process |
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