FLUX-PINNING AND THE IRREVERSIBILITY LINE IN BI2SR2CACU2O8 SINGLE-CRYSTALS
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.Full text not available from this repository.
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|
|Official Date:||February 1994|
|Number of Pages:||2|
|Page Range:||pp. 1887-1888|
|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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