Resistance Anomaly in Superconducting Fluctuation Region in Bi2Sr2CaCu2O8 Single Crystals

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Abstract
A resistivity anomaly near the superconducting transition temperature is observed in the ab-plane of as-grown Bi2Sr2CaCu2O8 (Bi-2 2 1 2) single crystals. The resistivity at the peak is much larger than the normal state resistivity around 100 K. The peak vanished gradually with increasing the applied magnetic field. I---V curves of the Bi-2 2 1 2 samples also exhibit a peak close to the transition steps, vanishing gradually with increasing intrinsic granularity of high-Tc superconductors.
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Author(s)
Russell, Graeme
Gu, Genda
Han, Shaowei
Zhao, Yong
Zhang, Hua
Koshizuka, N
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Publication Year
1997
Resource Type
Journal Article
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UNSW Faculty