Fabrication of Y1-xRExBa2Cu3Oy films on single crystalline substrates and IBAD buffered metallic tapes by advanced TFA-MOD process

Y. Kitoh, J. Matsuda, K. Suzuki, R. Teranishi, K. Nakaoka, Y. Aoki, H. Fuji, A. Yajima, Y. Yamada, T. Izumi, Y. Shiohara

研究成果: ジャーナルへの寄稿記事

6 引用 (Scopus)

抄録

We fabricated Y1-xSmxBa2Cu3Oy and YSmxBa2Cu3Oy (YSmBCO) films on SrTiO3 (STO) single crystalline substrates and IBAD buffered metallic tapes (PLD-CeO2/IBAD-GZO/Hastelloy) by the advanced TFA-MOD process by mixing TFA salts of Y, Sm, Ba and Cu naphthenate, and tried to improve the superconductivity properties compared with those of the pure YBa2Cu3O7-δ (YBCO). As a result, Jc values of Y1-xSmxBa2Cu3Oy films with x = 0.05 or 0.3, which were fabricated on STO substrates, were improved under the high magnetic fields compared with those of the YBCO without substitution. However, Sm segregation was detected near the STO substrate which was obtained by the TEM-EDS (transmission electron microscopy-energy-dispersive X-ray spectroscopy) analysis. On the other hand, Y1-xSmxBa2Cu3Oy films with x = 0.05 and YSmxBa2Cu3Oy films with x = 0.3, which were fabricated on IBAD buffered metallic substrates, also improved Ic value under the high magnetic fields compared with those of the YBCO without substitution. Moreover, from the TEM-EDS analysis, Y or Sm segregation was not found. The difference in the Sm segregation behavior between the film on STO and CeO2 buffered substrates could be explained by the difference in the ratios of the misfit parameters between YBCO/substrate and SmBCO/substrate. Additionally, it was considered that the above phenomenon might be unique in the MOD system and could not be observed in the PLD system, because of the difference in the crystal growth mechanism. In the film of YSm0.3Ba2Cu3Oy, we observed the grains of (Y, Sm)2O3 and (Y, Sm)2Cu2O5 by TEM observation. We will further investigate the origin of pinning centers.

元の言語英語
ページ(範囲)558-562
ページ数5
ジャーナルPhysica C: Superconductivity and its applications
445-448
発行部数1-2
DOI
出版物ステータス出版済み - 10 1 2006
外部発表Yes

Fingerprint

Ion beam assisted deposition
Tapes
tapes
Crystalline materials
Fabrication
fabrication
Substrates
Pulsed laser deposition
Transmission electron microscopy
transmission electron microscopy
Substitution reactions
substitutes
Magnetic fields
Hastelloy (trademark)
Crystallization
Superconductivity
Crystal growth
magnetic fields
spectroscopy
crystal growth

All Science Journal Classification (ASJC) codes

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

これを引用

Fabrication of Y1-xRExBa2Cu3Oy films on single crystalline substrates and IBAD buffered metallic tapes by advanced TFA-MOD process. / Kitoh, Y.; Matsuda, J.; Suzuki, K.; Teranishi, R.; Nakaoka, K.; Aoki, Y.; Fuji, H.; Yajima, A.; Yamada, Y.; Izumi, T.; Shiohara, Y.

:: Physica C: Superconductivity and its applications, 巻 445-448, 番号 1-2, 01.10.2006, p. 558-562.

研究成果: ジャーナルへの寄稿記事

Kitoh, Y. ; Matsuda, J. ; Suzuki, K. ; Teranishi, R. ; Nakaoka, K. ; Aoki, Y. ; Fuji, H. ; Yajima, A. ; Yamada, Y. ; Izumi, T. ; Shiohara, Y. / Fabrication of Y1-xRExBa2Cu3Oy films on single crystalline substrates and IBAD buffered metallic tapes by advanced TFA-MOD process. :: Physica C: Superconductivity and its applications. 2006 ; 巻 445-448, 番号 1-2. pp. 558-562.
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title = "Fabrication of Y1-xRExBa2Cu3Oy films on single crystalline substrates and IBAD buffered metallic tapes by advanced TFA-MOD process",
abstract = "We fabricated Y1-xSmxBa2Cu3Oy and YSmxBa2Cu3Oy (YSmBCO) films on SrTiO3 (STO) single crystalline substrates and IBAD buffered metallic tapes (PLD-CeO2/IBAD-GZO/Hastelloy) by the advanced TFA-MOD process by mixing TFA salts of Y, Sm, Ba and Cu naphthenate, and tried to improve the superconductivity properties compared with those of the pure YBa2Cu3O7-δ (YBCO). As a result, Jc values of Y1-xSmxBa2Cu3Oy films with x = 0.05 or 0.3, which were fabricated on STO substrates, were improved under the high magnetic fields compared with those of the YBCO without substitution. However, Sm segregation was detected near the STO substrate which was obtained by the TEM-EDS (transmission electron microscopy-energy-dispersive X-ray spectroscopy) analysis. On the other hand, Y1-xSmxBa2Cu3Oy films with x = 0.05 and YSmxBa2Cu3Oy films with x = 0.3, which were fabricated on IBAD buffered metallic substrates, also improved Ic value under the high magnetic fields compared with those of the YBCO without substitution. Moreover, from the TEM-EDS analysis, Y or Sm segregation was not found. The difference in the Sm segregation behavior between the film on STO and CeO2 buffered substrates could be explained by the difference in the ratios of the misfit parameters between YBCO/substrate and SmBCO/substrate. Additionally, it was considered that the above phenomenon might be unique in the MOD system and could not be observed in the PLD system, because of the difference in the crystal growth mechanism. In the film of YSm0.3Ba2Cu3Oy, we observed the grains of (Y, Sm)2O3 and (Y, Sm)2Cu2O5 by TEM observation. We will further investigate the origin of pinning centers.",
author = "Y. Kitoh and J. Matsuda and K. Suzuki and R. Teranishi and K. Nakaoka and Y. Aoki and H. Fuji and A. Yajima and Y. Yamada and T. Izumi and Y. Shiohara",
year = "2006",
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language = "English",
volume = "445-448",
pages = "558--562",
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T1 - Fabrication of Y1-xRExBa2Cu3Oy films on single crystalline substrates and IBAD buffered metallic tapes by advanced TFA-MOD process

AU - Kitoh, Y.

AU - Matsuda, J.

AU - Suzuki, K.

AU - Teranishi, R.

AU - Nakaoka, K.

AU - Aoki, Y.

AU - Fuji, H.

AU - Yajima, A.

AU - Yamada, Y.

AU - Izumi, T.

AU - Shiohara, Y.

PY - 2006/10/1

Y1 - 2006/10/1

N2 - We fabricated Y1-xSmxBa2Cu3Oy and YSmxBa2Cu3Oy (YSmBCO) films on SrTiO3 (STO) single crystalline substrates and IBAD buffered metallic tapes (PLD-CeO2/IBAD-GZO/Hastelloy) by the advanced TFA-MOD process by mixing TFA salts of Y, Sm, Ba and Cu naphthenate, and tried to improve the superconductivity properties compared with those of the pure YBa2Cu3O7-δ (YBCO). As a result, Jc values of Y1-xSmxBa2Cu3Oy films with x = 0.05 or 0.3, which were fabricated on STO substrates, were improved under the high magnetic fields compared with those of the YBCO without substitution. However, Sm segregation was detected near the STO substrate which was obtained by the TEM-EDS (transmission electron microscopy-energy-dispersive X-ray spectroscopy) analysis. On the other hand, Y1-xSmxBa2Cu3Oy films with x = 0.05 and YSmxBa2Cu3Oy films with x = 0.3, which were fabricated on IBAD buffered metallic substrates, also improved Ic value under the high magnetic fields compared with those of the YBCO without substitution. Moreover, from the TEM-EDS analysis, Y or Sm segregation was not found. The difference in the Sm segregation behavior between the film on STO and CeO2 buffered substrates could be explained by the difference in the ratios of the misfit parameters between YBCO/substrate and SmBCO/substrate. Additionally, it was considered that the above phenomenon might be unique in the MOD system and could not be observed in the PLD system, because of the difference in the crystal growth mechanism. In the film of YSm0.3Ba2Cu3Oy, we observed the grains of (Y, Sm)2O3 and (Y, Sm)2Cu2O5 by TEM observation. We will further investigate the origin of pinning centers.

AB - We fabricated Y1-xSmxBa2Cu3Oy and YSmxBa2Cu3Oy (YSmBCO) films on SrTiO3 (STO) single crystalline substrates and IBAD buffered metallic tapes (PLD-CeO2/IBAD-GZO/Hastelloy) by the advanced TFA-MOD process by mixing TFA salts of Y, Sm, Ba and Cu naphthenate, and tried to improve the superconductivity properties compared with those of the pure YBa2Cu3O7-δ (YBCO). As a result, Jc values of Y1-xSmxBa2Cu3Oy films with x = 0.05 or 0.3, which were fabricated on STO substrates, were improved under the high magnetic fields compared with those of the YBCO without substitution. However, Sm segregation was detected near the STO substrate which was obtained by the TEM-EDS (transmission electron microscopy-energy-dispersive X-ray spectroscopy) analysis. On the other hand, Y1-xSmxBa2Cu3Oy films with x = 0.05 and YSmxBa2Cu3Oy films with x = 0.3, which were fabricated on IBAD buffered metallic substrates, also improved Ic value under the high magnetic fields compared with those of the YBCO without substitution. Moreover, from the TEM-EDS analysis, Y or Sm segregation was not found. The difference in the Sm segregation behavior between the film on STO and CeO2 buffered substrates could be explained by the difference in the ratios of the misfit parameters between YBCO/substrate and SmBCO/substrate. Additionally, it was considered that the above phenomenon might be unique in the MOD system and could not be observed in the PLD system, because of the difference in the crystal growth mechanism. In the film of YSm0.3Ba2Cu3Oy, we observed the grains of (Y, Sm)2O3 and (Y, Sm)2Cu2O5 by TEM observation. We will further investigate the origin of pinning centers.

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