Ferromagnetic/superconducting proximity effect in La_(0.7)Ca_(0.3)MnO_(3)/YBa_(2)Cu_(3)O_(7-δ) superlattices

We study the interplay between magnetism and superconductivity in high-quality YBa_(2)Cu_(3)O_(7)(YBCO)/La_(0.7)Ca_(0.3)MnO_(3)(LCMO) superlattices. We find evidence for the YBCO superconductivity depression in the presence of the LCMO layers. We show that due to its short coherence length, supercon...

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Detalles Bibliográficos
Autores: Sefrioui, Zouhair, Arias Serna, Diego, Peña, V., Villegas, J. E., Prieto, P., Varela Del Arco, María, León Yebra, Carlos, Martínez, J. L., Santamaría Sánchez-Barriga, Jacobo
Tipo de recurso: artículo
Fecha de publicación:2003
País:España
Institución:Universidad Complutense de Madrid (UCM)
Repositorio:Docta Complutense
Idioma:inglés
OAI Identifier:oai:docta.ucm.es:20.500.14352/51443
Acceso en línea:https://hdl.handle.net/20.500.14352/51443
Access Level:acceso abierto
Palabra clave:537
538.9
Superconducting transition-temperature
Multilayers
Ferromagnet
Magnetism
Heterostructures
Trilayers
Interplay
Injection
Disorder
System.
Electricidad
Electrónica (Física)
Física de materiales
Física del estado sólido
2202.03 Electricidad
2211 Física del Estado Sólido
Descripción
Sumario:We study the interplay between magnetism and superconductivity in high-quality YBa_(2)Cu_(3)O_(7)(YBCO)/La_(0.7)Ca_(0.3)MnO_(3)(LCMO) superlattices. We find evidence for the YBCO superconductivity depression in the presence of the LCMO layers. We show that due to its short coherence length, superconductivity survives in the YBCO down to a much smaller thickness in the presence of the magnetic layer than in low Tc superconductors. We also find that for a fixed thickness of the superconducting layer, superconductivity is depressed over a thickness interval of the magnetic layer in the 100 nm range. This is a much longer length scale than that predicted by the theory of ferromagnetic/superconducting proximity effect.

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