Pradhan, A. K. ; Roul, B. K. ; Roy, S. B. ; Chaddah, P. ; Kanjilal, D. ; Chen, C. ; Wanklyn, B. M. (1997) Effects of grain boundaries and columnar defects on magnetic hysteresis of Bi2Sr2CaCu2O8+y single crystals Solid State Communications, 101 (5). pp. 367-369. ISSN 0038-1098
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Official URL: http://www.sciencedirect.com/science/article/pii/S...
Related URL: http://dx.doi.org/10.1016/S0038-1098(96)00564-9
Abstract
Angle dependent magnetization measurements have been carried out to investigate the role of grain boundaries (GBs) on the flux-line lattice (FLL) of high quality Bi2Sr2CaCu2O8+y (BSCCO) single crystals. We find that the microscopic evidence of GBs are responsible for unidirectional pinning below 1 T in as-grown crystal at 20 K. However, the unidirectional pinning observed in BSCCO crystal irradiated with 200 MeV Ag-ions can exist beyond 5 T at 20 K due to columnar tracks which act as effective pinning centres.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| ID Code: | 84660 |
| Deposited On: | 27 Feb 2012 12:19 |
| Last Modified: | 27 Feb 2012 12:19 |
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