Grover, A. K. ; Radhakrishnamurty, C. ; Chaddah, P. ; Ravi Kumar, G. ; Subbarao, G. V. (1988) Anomalous magnetic hysteresis loops and small Hc1 values in high Tc superconductors Pramana - Journal of Physics, 30 (2). L167-L171. ISSN 0304-4289
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Official URL: http://www.ias.ac.in/j_archive/pramana/30/2/167-17...
Abstract
We have studied the hysteresis loops of RBa2Cu3O7 (R=Gd, Ho and Y) and detected anomalies in some of them. The observed anomalies support a recent prediction by Ravi Kumar and Chaddah based on an extension of Bean's model. The anomalies indicate low Hc1 values and we have confirmed this by studying the onset of low-field hysteresis in less than 10 Oe at 77 K for these high Tc, superconductors.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Indian Academy of Sciences.. |
| Keywords: | High Tc Superconductors; Lower Critical Field; AC Methods; Magnetization Curves |
| ID Code: | 84829 |
| Deposited On: | 27 Feb 2012 12:12 |
| Last Modified: | 19 May 2016 01:07 |
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