Abstract
Melt-textured NdBa2Cu3Ox, (Ndl23) exhibits the secondary peak effect on the magnetic field dependence of the critical current density (Jc), which is attributed to the field-induced pinning. The electric field (E)-the current density (J) characteristics will be affected by the field-induced pinning. With the aim of clarifying this effect, we have investigated the E-J characteristics for melt-textured Nd123 with the secondary peak and Yba2Cu3Ox (Y123) with smaller secondary peak through dc magnetization and ac susceptibility. The n value was estimated on the assumption that E follows the power law: E = Ec(J/Jc)n. The n value was about 30 at 77 K for Y123. In the case of Nd123, the peak structure was observed on the magnetic field dependence of the n value, which exceeded 60 at 77 K. This suggests that the n value is increased by the field-induced pinning.
| Original language | English |
|---|---|
| Pages (from-to) | 3109-3112 |
| Number of pages | 4 |
| Journal | IEEE Transactions on Applied Superconductivity |
| Volume | 13 |
| Issue number | 2 III |
| DOIs | |
| Publication status | Published - 2003 Jun |
| Externally published | Yes |
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Keywords
- E-J characteristics
- Field-induced pinning
- N value
- Nd123
- Secondary peak
ASJC Scopus subject areas
- Electrical and Electronic Engineering
- Physics and Astronomy (miscellaneous)
Cite this
E-J characteristics and n value of melt-textured REBa2Cu3Ox; (RE : Nd, Y). / Inoue, Kazuo; Sakai, Naomichi; Murakami, Masato.
In: IEEE Transactions on Applied Superconductivity, Vol. 13, No. 2 III, 06.2003, p. 3109-3112.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - E-J characteristics and n value of melt-textured REBa2Cu3Ox; (RE
T2 - Nd, Y)
AU - Inoue, Kazuo
AU - Sakai, Naomichi
AU - Murakami, Masato
PY - 2003/6
Y1 - 2003/6
N2 - Melt-textured NdBa2Cu3Ox, (Ndl23) exhibits the secondary peak effect on the magnetic field dependence of the critical current density (Jc), which is attributed to the field-induced pinning. The electric field (E)-the current density (J) characteristics will be affected by the field-induced pinning. With the aim of clarifying this effect, we have investigated the E-J characteristics for melt-textured Nd123 with the secondary peak and Yba2Cu3Ox (Y123) with smaller secondary peak through dc magnetization and ac susceptibility. The n value was estimated on the assumption that E follows the power law: E = Ec(J/Jc)n. The n value was about 30 at 77 K for Y123. In the case of Nd123, the peak structure was observed on the magnetic field dependence of the n value, which exceeded 60 at 77 K. This suggests that the n value is increased by the field-induced pinning.
AB - Melt-textured NdBa2Cu3Ox, (Ndl23) exhibits the secondary peak effect on the magnetic field dependence of the critical current density (Jc), which is attributed to the field-induced pinning. The electric field (E)-the current density (J) characteristics will be affected by the field-induced pinning. With the aim of clarifying this effect, we have investigated the E-J characteristics for melt-textured Nd123 with the secondary peak and Yba2Cu3Ox (Y123) with smaller secondary peak through dc magnetization and ac susceptibility. The n value was estimated on the assumption that E follows the power law: E = Ec(J/Jc)n. The n value was about 30 at 77 K for Y123. In the case of Nd123, the peak structure was observed on the magnetic field dependence of the n value, which exceeded 60 at 77 K. This suggests that the n value is increased by the field-induced pinning.
KW - E-J characteristics
KW - Field-induced pinning
KW - N value
KW - Nd123
KW - Secondary peak
UR - http://www.scopus.com/inward/record.url?scp=0041965933&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0041965933&partnerID=8YFLogxK
U2 - 10.1109/TASC.2003.812116
DO - 10.1109/TASC.2003.812116
M3 - Article
VL - 13
SP - 3109
EP - 3112
JO - IEEE Transactions on Applied Superconductivity
JF - IEEE Transactions on Applied Superconductivity
SN - 1051-8223
IS - 2 III
ER -