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Título:
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Magnetism and superconductivity in La_(0.7)Ca_(0.3)MnO_(3)/YBa_(2)Cu_(3)O_(7-?) superlattices
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Autores:
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Prieto, P. ;
Vivas, P. ;
Campillo, G. ;
Baca, E. ;
Castro, L. F. ;
Varela del Arco, María ;
Ballesteros, C. ;
Villegas, J. E. ;
Arias Serna, Diego ;
León Yebra, Carlos ;
Santamaría Sánchez-Barriga, Jacobo
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Tipo de documento:
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texto impreso
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Editorial:
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American Institute of Physics, 2001-06-15
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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 report on the magnetic and superconducting properties of La_(0.7)Ca_(0.3)MnO_(3)/YBa_(2)Cu_(3)O_(7) (LCMO/YBCO) superlattices. For a constant LCMO layer thickness of 6 unit cells (u.c.), resistance and susceptibility measurements show superconductivity for YBCO layer thickness in excess of 4 unit cells. The critical temperature increases with YBCO thickness, and a T_(c) of 58 K is found for a YBCO thickness of 10 unit cells. Magnetization measurements show a ferromagnetic transition at 100 K in a (LCMO_(6u.c.)/YBCO_(5 u.c.))_(15 bilayer) superlattice, and a depressed value of the saturation magnetization of 20 emu cm^(-3). These results are discussed in terms of interface disorder (analyzed by x-ray diffraction and transmission electron microscopy) and of the possible interaction between magnetism and superconductivity.
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En línea:
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https://eprints.ucm.es/id/eprint/31106/1/LeonC101libre.pdf
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