Influences of calcination temperature on growth and superconducting properties of GdBa 2 Cu 3 O 7-δ films fabricated by fluorine-free metal organic deposition method

Kazuhiro Yamada, Kenji Kaneko, Yuki Yoshida, Takeshi Nishiyama, Ryo Teranishi, Koji Suzuki, Motoji Ito, Osuke Miura, Ryusuke Kita

研究成果: ジャーナルへの寄稿記事

5 引用 (Scopus)

抄録

GdBa 2 Cu 3 O 7-δ is one of the best candidates for the superconducting coated conductors because it has high critical temperature and high critical current density under high magnetic fields. In this study, superconducting GdBa 2 Cu 3 O 7-δ films were fabricated by fluorine-free metal organic deposition method via two different calcination temperatures, 723K and 873K, to examine the influence of calcination temperature on film growth and superconducting characteristics. Critical temperatures and critical current densities of the sample calcined at 873K were superior to the sample calcined at 723K. In the case of the sample calcined at 723K, the mixture of amorphous and crystalline phases was observed, and that of a- and c-axis oriented grains after the crystallization. In the case of the sample calcined at 873K, the randomly oriented crystalline phases were observed, and the mixture of c-axis oriented grains and (Gd, Al) 2 BaO 4 phase after the crystallization. These microstructural changes caused the differences in superconducting characteristics.

元の言語英語
ページ(範囲)44-50
ページ数7
ジャーナルMicron
50
DOI
出版物ステータス出版済み - 7 1 2013

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Fluorine
Metals
Temperature
Growth
Crystallization
Magnetic Fields

All Science Journal Classification (ASJC) codes

  • Structural Biology
  • Cell Biology

これを引用

Influences of calcination temperature on growth and superconducting properties of GdBa 2 Cu 3 O 7-δ films fabricated by fluorine-free metal organic deposition method . / Yamada, Kazuhiro; Kaneko, Kenji; Yoshida, Yuki; Nishiyama, Takeshi; Teranishi, Ryo; Suzuki, Koji; Ito, Motoji; Miura, Osuke; Kita, Ryusuke.

:: Micron, 巻 50, 01.07.2013, p. 44-50.

研究成果: ジャーナルへの寄稿記事

Yamada, Kazuhiro ; Kaneko, Kenji ; Yoshida, Yuki ; Nishiyama, Takeshi ; Teranishi, Ryo ; Suzuki, Koji ; Ito, Motoji ; Miura, Osuke ; Kita, Ryusuke. / Influences of calcination temperature on growth and superconducting properties of GdBa 2 Cu 3 O 7-δ films fabricated by fluorine-free metal organic deposition method :: Micron. 2013 ; 巻 50. pp. 44-50.
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abstract = "GdBa 2 Cu 3 O 7-δ is one of the best candidates for the superconducting coated conductors because it has high critical temperature and high critical current density under high magnetic fields. In this study, superconducting GdBa 2 Cu 3 O 7-δ films were fabricated by fluorine-free metal organic deposition method via two different calcination temperatures, 723K and 873K, to examine the influence of calcination temperature on film growth and superconducting characteristics. Critical temperatures and critical current densities of the sample calcined at 873K were superior to the sample calcined at 723K. In the case of the sample calcined at 723K, the mixture of amorphous and crystalline phases was observed, and that of a- and c-axis oriented grains after the crystallization. In the case of the sample calcined at 873K, the randomly oriented crystalline phases were observed, and the mixture of c-axis oriented grains and (Gd, Al) 2 BaO 4 phase after the crystallization. These microstructural changes caused the differences in superconducting characteristics.",
author = "Kazuhiro Yamada and Kenji Kaneko and Yuki Yoshida and Takeshi Nishiyama and Ryo Teranishi and Koji Suzuki and Motoji Ito and Osuke Miura and Ryusuke Kita",
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AU - Yamada, Kazuhiro

AU - Kaneko, Kenji

AU - Yoshida, Yuki

AU - Nishiyama, Takeshi

AU - Teranishi, Ryo

AU - Suzuki, Koji

AU - Ito, Motoji

AU - Miura, Osuke

AU - Kita, Ryusuke

PY - 2013/7/1

Y1 - 2013/7/1

N2 - GdBa 2 Cu 3 O 7-δ is one of the best candidates for the superconducting coated conductors because it has high critical temperature and high critical current density under high magnetic fields. In this study, superconducting GdBa 2 Cu 3 O 7-δ films were fabricated by fluorine-free metal organic deposition method via two different calcination temperatures, 723K and 873K, to examine the influence of calcination temperature on film growth and superconducting characteristics. Critical temperatures and critical current densities of the sample calcined at 873K were superior to the sample calcined at 723K. In the case of the sample calcined at 723K, the mixture of amorphous and crystalline phases was observed, and that of a- and c-axis oriented grains after the crystallization. In the case of the sample calcined at 873K, the randomly oriented crystalline phases were observed, and the mixture of c-axis oriented grains and (Gd, Al) 2 BaO 4 phase after the crystallization. These microstructural changes caused the differences in superconducting characteristics.

AB - GdBa 2 Cu 3 O 7-δ is one of the best candidates for the superconducting coated conductors because it has high critical temperature and high critical current density under high magnetic fields. In this study, superconducting GdBa 2 Cu 3 O 7-δ films were fabricated by fluorine-free metal organic deposition method via two different calcination temperatures, 723K and 873K, to examine the influence of calcination temperature on film growth and superconducting characteristics. Critical temperatures and critical current densities of the sample calcined at 873K were superior to the sample calcined at 723K. In the case of the sample calcined at 723K, the mixture of amorphous and crystalline phases was observed, and that of a- and c-axis oriented grains after the crystallization. In the case of the sample calcined at 873K, the randomly oriented crystalline phases were observed, and the mixture of c-axis oriented grains and (Gd, Al) 2 BaO 4 phase after the crystallization. These microstructural changes caused the differences in superconducting characteristics.

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