Jc enhancement in YEa2Cu3Ox thin films by introduction of one-dimensional artificial pinning centers

K. Matsuraoto, T. Horide, Paolo Mele, A. Ichinose, S. Horii, Y. Yoshida, M. Mukaida, K. Osamura

研究成果: Article

9 引用 (Scopus)

抄録

A novel technology to introduce artificial pinning centers (APCs) into YBa2Cu3O7-δ (YBCO) thin films prepared by pulsed laser deposition (PLD) was investigated for a drastic improvement of Jc in the films. Linear-like defects (one-dimensional APCs) were introduced perpendicular to the surface of the c-axis oriented films during the deposition process by using distributed Y2O3 nano-islands on substrates. The density of nano-islands was varied within 0.8 - 1.2 × 1010/cm2 by PLD. A normalized resistivity as a function of temperature in magnetic fields shows a sharper resistivity drop for the film with APC, compared to pure YBCO film. Jc of the film with APC was also increased to 0.12 MA/cm2 (77 K, B//c, 5 T), which was about two times higher than that of the pure YBCO film. The film had a very large J c peak when the field was applied close to the c-axis. The peak Jc increased with the number density of Y2O3 nano-islands. This indicates that strong APCs parallel to the c-axis were incorporated into the YBCO film.

元の言語English
ページ(範囲)3774-3777
ページ数4
ジャーナルIEEE Transactions on Applied Superconductivity
15
発行部数2 PART III
DOI
出版物ステータスPublished - 2005 6 1
外部発表Yes

Fingerprint

Thin films
augmentation
thin films
Pulsed laser deposition
pulsed laser deposition
electrical resistivity
Magnetic fields
Defects
barium copper yttrium oxide
defects
Substrates
magnetic fields
Temperature
temperature

ASJC Scopus subject areas

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

これを引用

Jc enhancement in YEa2Cu3Ox thin films by introduction of one-dimensional artificial pinning centers. / Matsuraoto, K.; Horide, T.; Mele, Paolo; Ichinose, A.; Horii, S.; Yoshida, Y.; Mukaida, M.; Osamura, K.

:: IEEE Transactions on Applied Superconductivity, 巻 15, 番号 2 PART III, 01.06.2005, p. 3774-3777.

研究成果: Article

Matsuraoto, K, Horide, T, Mele, P, Ichinose, A, Horii, S, Yoshida, Y, Mukaida, M & Osamura, K 2005, 'Jc enhancement in YEa2Cu3Ox thin films by introduction of one-dimensional artificial pinning centers', IEEE Transactions on Applied Superconductivity, 巻. 15, 番号 2 PART III, pp. 3774-3777. https://doi.org/10.1109/TASC.2005.849428
Matsuraoto, K. ; Horide, T. ; Mele, Paolo ; Ichinose, A. ; Horii, S. ; Yoshida, Y. ; Mukaida, M. ; Osamura, K. / Jc enhancement in YEa2Cu3Ox thin films by introduction of one-dimensional artificial pinning centers. :: IEEE Transactions on Applied Superconductivity. 2005 ; 巻 15, 番号 2 PART III. pp. 3774-3777.
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