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 |
| 巻 | 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 |
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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
}
TY - JOUR
T1 - Jc enhancement in YEa2Cu3Ox thin films by introduction of one-dimensional artificial pinning centers
AU - Matsuraoto, K.
AU - Horide, T.
AU - Mele, Paolo
AU - Ichinose, A.
AU - Horii, S.
AU - Yoshida, Y.
AU - Mukaida, M.
AU - Osamura, K.
PY - 2005/6/1
Y1 - 2005/6/1
N2 - 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.
AB - 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.
KW - APC
KW - Artificial pinning center
KW - Critical current density
KW - Thin film
KW - Vortex pinning
KW - YBCO
UR - http://www.scopus.com/inward/record.url?scp=22144476144&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=22144476144&partnerID=8YFLogxK
U2 - 10.1109/TASC.2005.849428
DO - 10.1109/TASC.2005.849428
M3 - Article
AN - SCOPUS:22144476144
VL - 15
SP - 3774
EP - 3777
JO - IEEE Transactions on Applied Superconductivity
JF - IEEE Transactions on Applied Superconductivity
SN - 1051-8223
IS - 2 PART III
ER -