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Pulsed Laser Deposition of quasi-multilayer superconducting Ba(Fe0.92Co0.08)2As2-BaHfO3 nanocomposite films

Meyer, Sven; Langer, Marco; Grünewald, Lukas; Hänisch, Jens; Gerthsen, Dagmar; Holzapfel, Bernhard

Abstract:
Quasi-multilayer films with perovskite nano-particles have already been investigated and reported in YBCO compounds. Here, we introduce this technique to iron based superconductors by preparing quasi-multilayer nanocomposite films of Co-doped BaFe2As2 with BaZrO3 and BaHfO3 perovskite nanoparticles by a pulsed laser deposition technique using a frequency-tripled Nd:YAG laser (λ = 355 nm) with separate targets of the constituents. We investigated the enhancement of pinning force density and critical current density in relation to critical temperature reduction. Application-relevant properties are discussed in relation to the deposition conditions and the microstructural properties of the films to better understand growth and behavior of strong pinning centers in these materials.



Zugehörige Institution(en) am KIT Institut für Technische Physik (ITEP)
Laboratorium für Elektronenmikroskopie (LEM)
Publikationstyp Proceedingsbeitrag
Publikationsjahr 2019
Sprache Englisch
Identifikator KITopen-ID: 1000104140
HGF-Programm 37.06.02 (POF III, LK 01) New Power Network Technology
Erschienen in 14th European Conference on Applied Superconductivity (EUCAS 2019)
Veranstaltung 14th European Conference on Applied Superconductivity (EUCAS 2019), Glasgow, Vereinigtes Königreich, 01.09.2019 – 05.09.2019
Serie Journal of Physics: Conference Series
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