Author(s)
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Sylva, Giulia (Genoa U.) ; Malagoli, Andrea (CNR-SPIN, Genova) ; Bellingeri, Emilio (CNR-SPIN, Genova) ; Putti, Marina (Genoa U.) ; Ferdeghini, Carlo (CNR-SPIN, Genova) ; Vannozzi, Angelo (ENEA, Frascati) ; Celentano, Giuseppe (ENEA, Frascati) ; Hopkins, Simon C (CERN) ; Lunt, Alexander (CERN) ; Ballarino, Amalia (CERN) ; Braccini, Valeria (CNR-SPIN, Genova) |
Abstract
| In this paper, the feasibility of producing Fe(Se,Te)-coated conductors on cost-effective, unbuffered Invar 36 substrates is studied. A suitable substrate with a sharp {001}<100> texture and a misorientation angle lower than 10° was developed, and the possibility of growing epitaxial thin films without any buffer layer was demonstrated. It was also shown that the presence of a Fe(Se,Te) seed layer can improve the in- and out-of-plane orientation of the film. A high-resolution scanning electron microscopy study was performed, and the absence of a superconducting transition has been attributed to Ni poisoning based on X-ray microanalysis. |