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FLUX-PINNING AND THE IRREVERSIBILITY LINE IN BI2SR2CACU2O8 SINGLE-CRYSTALS
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UNSPECIFIED (1994) FLUX-PINNING AND THE IRREVERSIBILITY LINE IN BI2SR2CACU2O8 SINGLE-CRYSTALS. In: 20th International Conference on Low Temperature Physics, EUGENE, OR, AUG 04-11, 1993. Published in: PHYSICA B, 194 (Part 2). pp. 1887-1888. ISSN 0921-4526.
Research output not available from this repository, contact author.Abstract
Measurements of the ac-susceptibility have been used to investigate the irreversibility line (IL) for a Bi2Sr2CaCu2O8 Single crystal. The activation energy, U0, determined from the frequency dependence of the ac-susceptibility, can be related to the IL if one employs the model of thermally activated flux creep. This correlation is clearly demonstrated by the observation of a kink in the IL and the existence of two regions in the U0(H) curve. These results show that for the magnetic field strengths considered in this work, the IL is a depinning line marking a crossover from flux creep to flux flow regimes.
| Item Type: | Conference Item (UNSPECIFIED) | ||||
|---|---|---|---|---|---|
| Subjects: | Q Science > QC Physics | ||||
| Journal or Publication Title: | PHYSICA B | ||||
| Publisher: | ELSEVIER SCIENCE BV | ||||
| ISSN: | 0921-4526 | ||||
| Official Date: | February 1994 | ||||
| Dates: |
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| Volume: | 194 | ||||
| Number: | Part 2 | ||||
| Number of Pages: | 2 | ||||
| Page Range: | pp. 1887-1888 | ||||
| Publication Status: | Published | ||||
| Title of Event: | 20th International Conference on Low Temperature Physics | ||||
| Location of Event: | EUGENE, OR | ||||
| Date(s) of Event: | AUG 04-11, 1993 |
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