High-Jc YBa2Cu3O7-x films obtained by no-additional-water annealing of precursor films deposited from Y, BaF2 and Cu

Ataru Ichinose; Takanobu Kiss; Akihiro Kikuchi; Kyoji Tachikawa; Shirabe Akita; Kiyoshi Inoue

doi:10.1088/0953-2048/16/3/312

High-J_c YBa₂Cu₃O_7-x films obtained by no-additional-water annealing of precursor films deposited from Y, BaF₂ and Cu

Ataru Ichinose, Takanobu Kiss, Akihiro Kikuchi, Kyoji Tachikawa, Shirabe Akita, Kiyoshi Inoue

Section of Measurement and Control Engineering

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

4 Citations (Scopus)

Abstract

High-J_c YBa₂Cu₃O_7-x (YBCO) films on SrTiO₃ substrates are successfully obtained by post-annealing of precursors films which are deposited by a co-evaporation technique with Y, BaF₂ and Cu evaporation sources at room temperature. In the case of using fluoride as the starting material for YBCO fabrications, water vapour is commonly introduced to decompose the fluoride in an annealing process. However, in the present process, we intentionally did not introduce water vapour. The obtained YBCO films have a high J_c of over 1 MA cm^-2 at 77 K and a self-field. This work has demonstrated that the additional water vapour is not required to obtain a high-J_c YBCO film regardless of whether fluoride is used as a starting material or not.

Original language	English
Pages (from-to)	398-401
Number of pages	4
Journal	Superconductor Science and Technology
Volume	16
Issue number	3
DOIs	https://doi.org/10.1088/0953-2048/16/3/312
Publication status	Published - Mar 2003

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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10.1088/0953-2048/16/3/312

Cite this

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title = "High-Jc YBa2Cu3O7-x films obtained by no-additional-water annealing of precursor films deposited from Y, BaF2 and Cu",

abstract = "High-Jc YBa2Cu3O7-x (YBCO) films on SrTiO3 substrates are successfully obtained by post-annealing of precursors films which are deposited by a co-evaporation technique with Y, BaF2 and Cu evaporation sources at room temperature. In the case of using fluoride as the starting material for YBCO fabrications, water vapour is commonly introduced to decompose the fluoride in an annealing process. However, in the present process, we intentionally did not introduce water vapour. The obtained YBCO films have a high Jc of over 1 MA cm-2 at 77 K and a self-field. This work has demonstrated that the additional water vapour is not required to obtain a high-Jc YBCO film regardless of whether fluoride is used as a starting material or not.",

author = "Ataru Ichinose and Takanobu Kiss and Akihiro Kikuchi and Kyoji Tachikawa and Shirabe Akita and Kiyoshi Inoue",

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T1 - High-Jc YBa2Cu3O7-x films obtained by no-additional-water annealing of precursor films deposited from Y, BaF2 and Cu

AU - Ichinose, Ataru

AU - Kiss, Takanobu

AU - Kikuchi, Akihiro

AU - Tachikawa, Kyoji

AU - Akita, Shirabe

AU - Inoue, Kiyoshi

PY - 2003/3

Y1 - 2003/3

N2 - High-Jc YBa2Cu3O7-x (YBCO) films on SrTiO3 substrates are successfully obtained by post-annealing of precursors films which are deposited by a co-evaporation technique with Y, BaF2 and Cu evaporation sources at room temperature. In the case of using fluoride as the starting material for YBCO fabrications, water vapour is commonly introduced to decompose the fluoride in an annealing process. However, in the present process, we intentionally did not introduce water vapour. The obtained YBCO films have a high Jc of over 1 MA cm-2 at 77 K and a self-field. This work has demonstrated that the additional water vapour is not required to obtain a high-Jc YBCO film regardless of whether fluoride is used as a starting material or not.

AB - High-Jc YBa2Cu3O7-x (YBCO) films on SrTiO3 substrates are successfully obtained by post-annealing of precursors films which are deposited by a co-evaporation technique with Y, BaF2 and Cu evaporation sources at room temperature. In the case of using fluoride as the starting material for YBCO fabrications, water vapour is commonly introduced to decompose the fluoride in an annealing process. However, in the present process, we intentionally did not introduce water vapour. The obtained YBCO films have a high Jc of over 1 MA cm-2 at 77 K and a self-field. This work has demonstrated that the additional water vapour is not required to obtain a high-Jc YBCO film regardless of whether fluoride is used as a starting material or not.

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High-J_c YBa₂Cu₃O_7-x films obtained by no-additional-water annealing of precursor films deposited from Y, BaF₂ and Cu

Abstract

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