Budhani, R. C. ; Suenaga, M. (1992) Heavy ion irradiation and the vortex-glass description of the mixed state in YBa2Cu3O7 epitaxial films Solid State Communications, 84 (8). pp. 831-834. ISSN 0038-1098
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Official URL: http://www.sciencedirect.com/science/article/pii/0...
Related URL: http://dx.doi.org/10.1016/0038-1098(92)90100-N
Abstract
We report the behavior of the Ohmic resistivity and the current-dependent dissipation in the mixed state of YBa2Cu3O7 films irradiated with 300 MeV gold ions. The transport in both irradiated and unirradiated states of the samples agrees with the model of a second order phase transition to a vortex glass state. While the zero-field critical temperature and current are reduced by the irradiation, the vortex-glass description of the mixed state remains unchanged up to a dosage of ~9 × 1010 ions/cm2. These results indicate that in these high Jc films the vortex dynamics is controlled by pinning centers distributed at a length scale much shorter than the gold-ion induced defects.
Item Type: | Article |
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Source: | Copyright of this article belongs to Elsevier Science. |
ID Code: | 77245 |
Deposited On: | 10 Jan 2012 14:14 |
Last Modified: | 10 Jan 2012 14:14 |
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