Determination of the onset of bulk pinning and the low-temperature-irreversibility line in Bi2Sr2CaCu2O8+ delta.

  title={Determination of the onset of bulk pinning and the low-temperature-irreversibility line in Bi2Sr2CaCu2O8+ delta.},
  author={Dewhurst and Cardwell and Campbell and Doyle and Balakrishnan and Paul},
  journal={Physical review. B, Condensed matter},
  volume={53 21},
  • Dewhurst, Cardwell, +3 authors Paul
  • Published 1996
  • Materials Science, Medicine
  • Physical review. B, Condensed matter
We report the results of dc magnetization measurements of Bi2Sr2CaCu2O81d single crystals as a function of temperature. The evolution of the hysteresis loops with temperature is examined and the irreversibility line extracted. These loops can be scaled onto each other from 4.2 to 20 K, while the lower field part of the loops for the virgin curves continue to scale up to Tc . At intermediate temperatures, the scaling is broken by the appearance of the second peak or ‘‘arrowhead’’ which appears… Expand
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