Defense Technical Information Center (DTIC) · 2008 · 117 citations · 0 references
Natural SciencesMaterials SciencePhysicsMagnetic MaterialsNanomaterialsThin FilmsMagnetic NanomaterialsMagnetic OxidesMagnetic Properties Of SolidsMagnetic Thin FilmsMagnetism In SolidsThin Film Magnetic PropertiesField-dependent MagnetizationFlux PinningHigh-temperature Superconducting FilmsIrreversibilityMagnetic FluxMagnetic Oxide NanoparticlesSuperconducting PropertiesYttrium Barium Copper Oxide Films
Nanoparticles of BaSnO3 were incorporated into YBa2Cu3O7-x (YBCO) films on LaAlO3 substrates for magnetic flux pinning enhancements. More than an order of magnitude improvement in the high field magnetization Jc at 6 T at 77 K was observed as compared to regular YBCO films. The irreversibility field (Hirr) was increased to 8.5 T at 77 K and to 13.4 T at 65 K. The in-field transport current measurements confirmed an order of magnitude improvement in high fields.