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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Lichtenberger, K.S. Sanders, S.C. Finnemore, D.K. |
| Copyright Year | 1965 |
| Abstract | Measurements of flux creep have been undertaken for a variety of superconductors' to determine the factors that control the temperature and magnetic field regimes where the material transforms from a strong-pinning rigid-flux lattice material to the region where the flux lattice is highly mobile. Analysis of the data in terms of a single effective pinning potential, U/sub eff/, using the Beasley model indicates that all of the superconductors measured have a gradual transition from the strong pinning behavior at low temperature to weak pinning behavior at high temperature. There is a narrow band of fields and temperatures in the H-T plane where U/sub eff//kT rises from 2 to 100. The position of this band changes considerably from material to material. It is shown that there are some striking similarities and some clear trends in the pinning potentials when they are plotted on a reduced temperature scale. The highly anisotropic Tl-based and Nd-based copper oxides are very similar even though their T/sub c/ values differ by a factor of 5. In the progression from Nb-Ti to the cubic Bi-oxide to the anisotropic Cu-oxide, there is a clear trend to a wider region of high flux creep. |
| Sponsorship | IEEE Magnetics Society |
| Starting Page | 1387 |
| Ending Page | 1389 |
| Page Count | 3 |
| File Size | 287223 |
| File Format | |
| ISSN | 00189464 |
| Volume Number | 27 |
| Issue Number | 2 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 1991-03-01 |
| Publisher Place | U.S.A. |
| Access Restriction | One Nation One Subscription (ONOS) |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Creep Superconductivity Magnetic materials Magnetic field measurement Superconducting materials Lattices High temperature superconductors Superconducting transition temperature Anisotropic magnetoresistance Temperature control |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering |
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