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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Inoue, K. Sakai, N. Murakami, M. |
| Copyright Year | 2002 |
| Abstract | Melt-textured NdBa/sub 2/Cu/sub 3/O/sub x/ (Nd123) exhibits the secondary peak effect on the magnetic field dependence of the critical current density (J/sub c/), 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 YBa/sub 2/Cu/sub 3/O/sub x/ (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=E/sub c/(J/J/sub c/)/sup 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. |
| Sponsorship | Council on Superconductivity Appl. Superconductivity Conference Inc MIT |
| Starting Page | 3109 |
| Ending Page | 3112 |
| Page Count | 4 |
| File Size | 375147 |
| File Format | |
| ISSN | 10518223 |
| Volume Number | 13 |
| Issue Number | 2 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2003-06-01 |
| Publisher Place | U.S.A. |
| Access Restriction | One Nation One Subscription (ONOS) |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Neodymium Magnetic field measurement Magnetization Superconductivity Critical current density Current density Magnetic susceptibility Magnetic fields High temperature superconductors Atmosphere |
| Content Type | Text |
| Resource Type | Article |
| Subject | Condensed Matter Physics Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering |
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