TY - JOUR
T1 - E-J characteristics and n value of melt-textured REBa2Cu3Ox; (RE
T2 - 2002 Applied Superconductivity Conference
AU - Inoue, Kazuo
AU - Sakai, Naomichi
AU - Murakami, Masato
N1 - Funding Information:
Manuscript received August 5, 2002. This work was supported by the New Energy and Industrial Technology Development Organization (NEDO) as Collaborative Research and Development of Fundamental Technologies for Superconductivity.
Copyright:
Copyright 2008 Elsevier B.V., All rights reserved.
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
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U2 - 10.1109/TASC.2003.812116
DO - 10.1109/TASC.2003.812116
M3 - Conference article
AN - SCOPUS:0041965933
VL - 13
SP - 3109
EP - 3112
JO - IEEE Transactions on Applied Superconductivity
JF - IEEE Transactions on Applied Superconductivity
SN - 1051-8223
IS - 2 III
Y2 - 4 August 2002 through 9 August 2002
ER -