Growth and pinning properties of superconducting nanostructured FeSe _0.5Te_0.5 thin films on amorphous substrates

FeSe_0.5Te_0.5 thin films were deposited by a pulsed laser deposition technique on amorphous substrates, e.g., for demonstration, glass substrates were used. Various interlayers were introduced to enhance the superconducting properties. Detailed microstructural characterizations including X-ray diffraction and cross-sectional transmission electron microscopy were conducted to verify the film quality. The results indicated the highly textured FeSe_0.5Te_0.5 film along (00l) direction on the glass substrate with good crystallinity. The transport properties were measured by a physical property measurement system. The superconducting critical transition temperature (T_c) is around 6 K. The critical current densities (J_c) were measured by the vibrating sample magnetometer in the physical property measurement system at 2 K under magnetic field up to 1 T. The growth of high-quality superconducting FeSe_0.5Te_0.5 thin film demonstrates a low cost method for processing future Fe-based superconductor-coated conductors.