A novel approach for preparing Fe(Te xS y) superconducting films: Solid phase epitaxial growth from amorphous precursors

T. Yoshimoto; Y. Fujii; R. Teranishi; K. Kurumi; K. Yoshida; Y. Yoshida; Y. Ichino; T. Nishiyama; S. Munetoh; K. Kaneko

doi:10.1088/0953-2048/25/10/105013

A novel approach for preparing Fe(Te _xS _y) superconducting films: Solid phase epitaxial growth from amorphous precursors

T. Yoshimoto, Y. Fujii, R. Teranishi, K. Kurumi, K. Yoshida, Y. Yoshida, Y. Ichino, T. Nishiyama, S. Munetoh, K. Kaneko

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

4 Citations (Scopus)

Abstract

Fe(Te _xS _y) films were fabricated on (100) SrTiO ₃ substrates from Fe(Te _0.65S _0.16) amorphous precursors by a solid phase epitaxial growth process under various background atmospheric conditions. Structural analysis by x-ray diffraction showed strong peaks corresponding to Fe(Te _xS _y) phases, when the amorphous precursors were heated with Fe(Te _0.8S _0.2) sintered pellets. The crystallinity of the films deteriorated at longer periods of heating but the compositional shifts were found to have decreased. Consequently, the critical temperature, T _Czero, of the Fe(Te _xS _y) film with minimum compositional shift was found to be 9.0K and critical current density, J _C, of the film was about 1.4×10 ⁴Acm ².

Original language	English
Article number	105013
Journal	Superconductor Science and Technology
Volume	25
Issue number	10
DOIs	https://doi.org/10.1088/0953-2048/25/10/105013
Publication status	Published - Oct 1 2012

All Science Journal Classification (ASJC) codes

Ceramics and Composites
Condensed Matter Physics
Metals and Alloys
Electrical and Electronic Engineering
Materials Chemistry

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10.1088/0953-2048/25/10/105013

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title = "A novel approach for preparing Fe(Te xS y) superconducting films: Solid phase epitaxial growth from amorphous precursors",

abstract = "Fe(Te xS y) films were fabricated on (100) SrTiO 3 substrates from Fe(Te 0.65S 0.16) amorphous precursors by a solid phase epitaxial growth process under various background atmospheric conditions. Structural analysis by x-ray diffraction showed strong peaks corresponding to Fe(Te xS y) phases, when the amorphous precursors were heated with Fe(Te 0.8S 0.2) sintered pellets. The crystallinity of the films deteriorated at longer periods of heating but the compositional shifts were found to have decreased. Consequently, the critical temperature, T Czero, of the Fe(Te xS y) film with minimum compositional shift was found to be 9.0K and critical current density, J C, of the film was about 1.4×10 4Acm 2.",

author = "T. Yoshimoto and Y. Fujii and R. Teranishi and K. Kurumi and K. Yoshida and Y. Yoshida and Y. Ichino and T. Nishiyama and S. Munetoh and K. Kaneko",

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T1 - A novel approach for preparing Fe(Te xS y) superconducting films

T2 - Solid phase epitaxial growth from amorphous precursors

AU - Yoshimoto, T.

AU - Fujii, Y.

AU - Teranishi, R.

AU - Kurumi, K.

AU - Yoshida, K.

AU - Yoshida, Y.

AU - Ichino, Y.

AU - Nishiyama, T.

AU - Munetoh, S.

AU - Kaneko, K.

PY - 2012/10/1

Y1 - 2012/10/1

N2 - Fe(Te xS y) films were fabricated on (100) SrTiO 3 substrates from Fe(Te 0.65S 0.16) amorphous precursors by a solid phase epitaxial growth process under various background atmospheric conditions. Structural analysis by x-ray diffraction showed strong peaks corresponding to Fe(Te xS y) phases, when the amorphous precursors were heated with Fe(Te 0.8S 0.2) sintered pellets. The crystallinity of the films deteriorated at longer periods of heating but the compositional shifts were found to have decreased. Consequently, the critical temperature, T Czero, of the Fe(Te xS y) film with minimum compositional shift was found to be 9.0K and critical current density, J C, of the film was about 1.4×10 4Acm 2.

AB - Fe(Te xS y) films were fabricated on (100) SrTiO 3 substrates from Fe(Te 0.65S 0.16) amorphous precursors by a solid phase epitaxial growth process under various background atmospheric conditions. Structural analysis by x-ray diffraction showed strong peaks corresponding to Fe(Te xS y) phases, when the amorphous precursors were heated with Fe(Te 0.8S 0.2) sintered pellets. The crystallinity of the films deteriorated at longer periods of heating but the compositional shifts were found to have decreased. Consequently, the critical temperature, T Czero, of the Fe(Te xS y) film with minimum compositional shift was found to be 9.0K and critical current density, J C, of the film was about 1.4×10 4Acm 2.

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A novel approach for preparing Fe(Te _xS _y) superconducting films: Solid phase epitaxial growth from amorphous precursors

Abstract

All Science Journal Classification (ASJC) codes

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