Chandran, M. ; Chaddah, P. (1995) Low-field AC magnetization of granular high-Tc superconductors Superconductor Science and Technology, 8 (10). pp. 774-778. ISSN 0953-2048
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Official URL: http://iopscience.iop.org/0953-2048/8/10/006
Related URL: http://dx.doi.org/10.1088/0953-2048/8/10/006
Abstract
We report the low-field AC magnetization of granular high-Tc superconductors with an anomalous structure, not previously observed. The M-H curve develops a lobe in addition to the main loops, showing intergranular losses. We attribute this to the possible presence of a second kind of weak-link network, connecting the grains along the applied field direction. This is a consequence of the finite geometry of the grains, bringing their demagnetization factor into play. This also explains the observed double-peak structure in the second-harmonic voltage with DC fields.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Institute of Physics. |
| ID Code: | 84674 |
| Deposited On: | 27 Feb 2012 04:27 |
| Last Modified: | 27 Feb 2012 04:27 |
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