Abstract
High-temperature superconductors can carry high non dissipative currents at low temperatures as long as quantized vortices are pinned. However, the currents in a magnetic field at liquid nitrogen temperature (77 K) are not sufficiently high for practical use due to the weak pinning. For the improvement of nondissipative currents in YBa2Cu3O 7-δ films, linear defects that extended to the c-axis of the film were introduced using a novel nanostructure technology. We observed a marked enhancement of the nondissipative currents even at 77 K and high fields when the fields were applied close to the c-axis. This is a clear demonstration of enhanced pinning using artificially incorporated pinning centers.
| Original language | English |
|---|---|
| Journal | Japanese Journal of Applied Physics, Part 2: Letters |
| Volume | 44 |
| Issue number | 1-7 |
| DOIs | |
| Publication status | Published - May 3 2005 |
| Externally published | Yes |
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All Science Journal Classification (ASJC) codes
- Engineering(all)
- Physics and Astronomy (miscellaneous)
- Physics and Astronomy(all)
Cite this
Critical current control in YBa2Cu3O 7-δ films using artificial pinning centers. / Matsumoto, Kaname; Horide, Tomoya; Ichinose, Ataru; Horii, Shigeru; Yoshida, Yutaka; Mukaida, Masashi.
In: Japanese Journal of Applied Physics, Part 2: Letters, Vol. 44, No. 1-7, 03.05.2005.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Critical current control in YBa2Cu3O 7-δ films using artificial pinning centers
AU - Matsumoto, Kaname
AU - Horide, Tomoya
AU - Ichinose, Ataru
AU - Horii, Shigeru
AU - Yoshida, Yutaka
AU - Mukaida, Masashi
PY - 2005/5/3
Y1 - 2005/5/3
N2 - High-temperature superconductors can carry high non dissipative currents at low temperatures as long as quantized vortices are pinned. However, the currents in a magnetic field at liquid nitrogen temperature (77 K) are not sufficiently high for practical use due to the weak pinning. For the improvement of nondissipative currents in YBa2Cu3O 7-δ films, linear defects that extended to the c-axis of the film were introduced using a novel nanostructure technology. We observed a marked enhancement of the nondissipative currents even at 77 K and high fields when the fields were applied close to the c-axis. This is a clear demonstration of enhanced pinning using artificially incorporated pinning centers.
AB - High-temperature superconductors can carry high non dissipative currents at low temperatures as long as quantized vortices are pinned. However, the currents in a magnetic field at liquid nitrogen temperature (77 K) are not sufficiently high for practical use due to the weak pinning. For the improvement of nondissipative currents in YBa2Cu3O 7-δ films, linear defects that extended to the c-axis of the film were introduced using a novel nanostructure technology. We observed a marked enhancement of the nondissipative currents even at 77 K and high fields when the fields were applied close to the c-axis. This is a clear demonstration of enhanced pinning using artificially incorporated pinning centers.
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UR - http://www.scopus.com/inward/citedby.url?scp=17544372044&partnerID=8YFLogxK
U2 - 10.1143/JJAP.44.L246
DO - 10.1143/JJAP.44.L246
M3 - Article
AN - SCOPUS:17544372044
VL - 44
JO - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
JF - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes
SN - 0021-4922
IS - 1-7
ER -