Abstract
The vortex-glass-liquid transition in BiSrCaCuO (BSCCO) intergrowth single crystals in which some CuO 2 trilayers are inserted into the Bi 2Sr 2CaCu 2O 8 matrix has been studied. The curvature of the log V-log I curves for CuO 2 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, T G , qualitatively obeys the relation H( T G ) ∼ ( T c − T g ) 2 v 0 , with v 0 = 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 CuO 2 trilayers.
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