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Título:
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Zero-magnetic-field dynamic scaling in Bi_2Sr_2CaCu_2O_8 thin films
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Autores:
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Sefrioui, Z. ;
Arias, D. ;
León, C. ;
Santamaría Sánchez-Barriga, Jacobo ;
González Herrera, Elvira María ;
Vicent López, José Luis
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Tipo de documento:
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texto impreso
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Editorial:
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American Physical Society, 2004-08
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Dimensiones:
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application/pdf
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Nota general:
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info:eu-repo/semantics/openAccess
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Idiomas:
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Palabras clave:
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Estado = Publicado
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Materia = Ciencias: Física: Electricidad
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Materia = Ciencias: Física: Electrónica
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Materia = Ciencias: Física: Física de materiales
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Materia = Ciencias: Física: Física del estado sólido
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Tipo = Artículo
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Resumen:
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We investigate the zero-magnetic-field dynamic scaling in Bi_2Sr_2CaCu_2O_8 thin films from nonlinear current-voltage (I-V) characteristics and by using the concavity criterion recently proposed by Strachan [Phys. Rev. Lett. 87, 067007 (2001)] . We find that fresh samples show a BKT-like transition with z=0.8, smaller than expected for a conventional Berezinskii-Kosterlitz- Thouless transition. The effect of sample size and finite Josephson coupling are discussed. We examine the effect of thermally-induced disorder in the oxygen sublattice finding that the BKT-like transition is suppressed by point disorder.
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En línea:
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https://eprints.ucm.es/43859/1/Gonz%C3%A1lezH%20EM%2024%20LIBRE.pdf
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