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

doi:10.1109/TASC.2019.2893585

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

Department of Mechanical Engineering

Research output: Contribution to journal › Article › peer-review

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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 language	English
Article number	861851
Pages (from-to)	1-5
Number of pages	5
Journal	IEEE Transactions on Applied Superconductivity
Volume	29
Issue number	5
Early online date	17 Jan 2019
DOIs	https://doi.org/10.1109/TASC.2019.2893585
Publication status	Published - 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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10.1109/TASC.2019.2893585

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Cite this

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

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.",

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AU - Sylva, G.

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AU - Bellingeri, E.

AU - Putti, M.

AU - Ferdeghini, C.

AU - Vannozzi, A.

AU - Celentano, G.

AU - Hopkins, S. C.

AU - Lunt, A.

AU - Ballarino, A.

AU - Braccini, V.

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

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Alexander Lunt

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

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Alexander Lunt

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