Mishra, P. K. ; Ravikumar, G. ; Chaddah, P. ; Kumar, Shailendra ; Dasannacharya, B. A. (1990) Transport critical current density of polycrystalline YBCO in zero field cooled and field cooled states: a comparison Japanese Journal of Applied Physics, 29 . L1612-L1614. ISSN 0021-4922
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Official URL: http://jjap.jsap.jp/link?JJAP/29/L1612/
Related URL: http://dx.doi.org/10.1143/JJAP.29.L1612
Abstract
Magnetic field dependence of transport critical current density (Jc) of a polycrystalline YBCO superconductor in field cooled and zero field cooled cases have been studied experimentally. The measured Jc value when the sample was cooled in a field (FC) was always larger than that measured for a zero field cooled (ZFC) case in the same magnetic field. We also observe (i) a peak in the field dependence of the ratio of Jc in FC case to that of ZFC case and (ii) an anomalous rise in Jc in ZFC case with increasing field. These observations are explained as a signature of two types of regions (intergrain and intragrain) in sintered specimens.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Institute of Pure and Applied Physics. |
| ID Code: | 84821 |
| Deposited On: | 27 Feb 2012 12:14 |
| Last Modified: | 10 Jul 2012 04:15 |
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