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Lucía Mulas, María Luisa ; Sánchez Quesada, Francisco ; Sánchez Soto, Luis Lorenzo ; Navacerrada, M.A. | American Physical Society | 2005-01The electromagnetic parameters of YBa2Cu3O7-x (YBCO) grain boundary Josephson junctions (JJs) fabricated on four different tilt bicrystal geometries: 12degrees [001] asymmetric, 24degrees [001] symmetric, 24degrees [001] asymmetric, and 45degree[...]texto impreso
Lucía Mulas, María Luisa ; Sánchez Quesada, Francisco ; Santamaría Sánchez-Barriga, Jacobo ; Sefrioui, Zouhair ; Arias Serna, Diego ; Loos, G. ; Navacerrada, M.A. | Amer Inst Physics | 2000-05-29We have studied the effect of He+ irradiation with doses in the range 10(12)-2x10(15) cm(-2) on two high-temperature superconducting structures: YBa2Cu3O7-x (YBCO) films and YBa2Cu3O7-x/PrBa2Cu3O7 (YBCO/PBCO) superlattices. In particular we have[...]texto impreso
Lucía Mulas, María Luisa ; Sánchez Quesada, Francisco ; Navacerrada, M.A. | American Physical Society | 2000-03-01We have analyzed the electromagnetic properties of small and long YBa2Cu3O7-x grain-boundary Josephson junctions. The Swihart velocity increases with junction width (rv) while the ratio of the relative dielectric constant to the barrier thicknes[...]texto impreso
Lucía Mulas, María Luisa ; Sánchez Quesada, Francisco ; Santamaría Sánchez-Barriga, Jacobo ; Sefrioui, Zouhair ; Varela del Arco, María ; Arias Serna, Diego ; Loos, G. ; Navacerrada, M.A. | American Institute of Physics | 1998-12-07We have studied the effect of He+ irradiation on the electrical resistivity and Curie temperature of ferromagnetic SrRuO3 thin films. An evolution from metallic to insulating behavior is observed when He+ ion fluence is increased, suggesting a m[...]
