Epitaxial thin films of RuSr2(Eu1.5Ce 0.5)Cu2O10-δ (Ru-1222), which attracts much attention as a magnetic superconductor, were grown on SrTiO3 (001) substrate by a "flux-mediated reactive solid phase epitaxy" technique. The films were highly c-oriented and contained no randomly aligned phases. The superconducting transition was observed at 25 K coexisting with the weak ferromagnetic order. Magnetic anisotropy was observed between the in-plane and out-of-plane directions.
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