Vortex-glass liquid transition in Bi2Sr2CaCu2O8/Bi2Sr2Ca2Cu3O10 intergrowth single crystals

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Abstract
The vortex-glass-liquid transition in Bi---Sr---Ca---Cu---O (BSCCO) intergrowth single crystals in which some CuO2 trilayers are inserted into the Bi2Sr2CaCu2O8 matrix has been studied. The curvature of the log V-logI curves for CuO2 trilayers is found to change from negative to positive with increasing magnetic field and a scaling behaviour for the vortex-glass state is observed. The magnetic field dependence of the vortex-glass transition temperature, TG, qualitatively obeys the relation H(TG) (Tc − Tg)2v0, with v0 = 1.15 ± 0.2, which is larger than the 2/3 predicted theoretically for an isotropic 3D system. Our results reveal that the vortex-glass transition exists in a system constructed with CuO2 trilayers.
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Author(s)
Han, Shaowei
Zhao, Yong
Yang, C
Cheng, Chun-Chung
Zhang, Hua
Gu, Genda
Russell, Graeme
Koshizuka, N
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Publication Year
1998
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Journal Article
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