Advances in Superconductivity X pp 55-58 | Cite as
Hall Effect of Vortices Parallel to CuO2 Layers in Single Crystalline Bi-2212
Abstract
The temperatuxre dependence of out-of-plane Hall resistivity ρXZ of Josephson vortices in Bi- 2212 single crystal was investigated in the fixed fields. Hall resistivity ρXZ shows very small negative values in the normal state, similar to the result obtained in YBCO single crystals. In the mixed state, ρXZ appears a large positive maximum at a certain temperature T0, where T0 is close to the transition temperature Tc and depends to the fields. There is a larger Hall angle in the mixed state. A maximum of Hall angle θH =83.1° in the field 2T was observed at 82.5K, indicating that the Josephson vortices move rapidly along the transport current direction. A sign reversal was observed near Tc. It was found that there is a large anisotropy for the vortex state Hall effect.
Keywords
Bi-2212 single crystals mixed state out of plane Hall effect anisotropic behaviorPreview
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