Analysis of Fe(Se,Te) Films Deposited On Unbuffered Invar 36

G. Sylva, A. Malagoli, E. Bellingeri, M. Putti, C. Ferdeghini, A. Vannozzi, G. Celentano, S. C. Hopkins, A. Lunt, A. Ballarino, V. Braccini

Research output: Contribution to journalArticle

3 Citations (Scopus)
26 Downloads (Pure)

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.
Original languageEnglish
Article number861851
Pages (from-to)1-5
Number of pages5
JournalIEEE Transactions on Applied Superconductivity
Volume29
Issue number5
Early online date17 Jan 2019
DOIs
Publication statusPublished - 1 Aug 2019

Keywords

  • Substrates
  • Heat treatment
  • Nickel
  • Iron
  • Epitaxial growth
  • Iron based superconductors
  • Fe(Se,Te) thin films
  • coated conductors
  • invar 36 alloy
  • biaxial texturing
  • pulsed laser deposition

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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